WebView.cpp revision fa3976234409edb5477e8950204c597cf2a6dda9 
1/*
2 * Copyright 2007, The Android Open Source Project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *  * Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 *  * Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#define LOG_TAG "webviewglue"
27
28#include "config.h"
29
30#include "AndroidAnimation.h"
31#include "AndroidLog.h"
32#include "BaseLayerAndroid.h"
33#include "BaseRenderer.h"
34#include "DrawExtra.h"
35#include "Frame.h"
36#include "GLWebViewState.h"
37#include "GraphicsJNI.h"
38#include "HTMLInputElement.h"
39#include "IntPoint.h"
40#include "IntRect.h"
41#include "LayerAndroid.h"
42#include "LayerContent.h"
43#include "Node.h"
44#include "utils/Functor.h"
45#include "private/hwui/DrawGlInfo.h"
46#include "PlatformGraphicsContext.h"
47#include "PlatformString.h"
48#include "ScrollableLayerAndroid.h"
49#include "SelectText.h"
50#include "SkCanvas.h"
51#include "SkDumpCanvas.h"
52#include "SkPicture.h"
53#include "SkRect.h"
54#include "SkTime.h"
55#include "TilesManager.h"
56#include "TransferQueue.h"
57#include "WebCoreJni.h"
58#include "WebRequestContext.h"
59#include "WebViewCore.h"
60#include "android_graphics.h"
61
62#ifdef GET_NATIVE_VIEW
63#undef GET_NATIVE_VIEW
64#endif
65
66#define GET_NATIVE_VIEW(env, obj) ((WebView*)env->GetIntField(obj, gWebViewField))
67
68#include <JNIUtility.h>
69#include <JNIHelp.h>
70#include <jni.h>
71#include <androidfw/KeycodeLabels.h>
72#include <wtf/text/AtomicString.h>
73#include <wtf/text/CString.h>
74
75// Free as much as we possible can
76#define TRIM_MEMORY_COMPLETE 80
77// Free a lot (all textures gone)
78#define TRIM_MEMORY_MODERATE 60
79// More moderate free (keep bare minimum to restore quickly-ish - possibly clear all textures)
80#define TRIM_MEMORY_BACKGROUND 40
81// Moderate free (clear cached tiles, keep visible ones)
82#define TRIM_MEMORY_UI_HIDDEN 20
83// Duration to show the pressed cursor ring
84#define PRESSED_STATE_DURATION 400
85
86namespace android {
87
88static jfieldID gWebViewField;
89
90//-------------------------------------
91
92static jmethodID GetJMethod(JNIEnv* env, jclass clazz, const char name[], const char signature[])
93{
94    jmethodID m = env->GetMethodID(clazz, name, signature);
95    ALOG_ASSERT(m, "Could not find method %s", name);
96    return m;
97}
98
99//-------------------------------------
100// This class provides JNI for making calls into native code from the UI side
101// of the multi-threaded WebView.
102class WebView
103{
104public:
105enum FrameCachePermission {
106    DontAllowNewer,
107    AllowNewer
108};
109
110#define DRAW_EXTRAS_SIZE 2
111enum DrawExtras { // keep this in sync with WebView.java
112    DrawExtrasNone = 0,
113    DrawExtrasSelection = 1,
114    DrawExtrasCursorRing = 2
115};
116
117struct JavaGlue {
118    jweak       m_obj;
119    jmethodID   m_scrollBy;
120    jmethodID   m_getScaledMaxXScroll;
121    jmethodID   m_getScaledMaxYScroll;
122    jmethodID   m_getVisibleRect;
123    jmethodID   m_viewInvalidate;
124    jmethodID   m_viewInvalidateRect;
125    jmethodID   m_postInvalidateDelayed;
126    jmethodID   m_pageSwapCallback;
127    jfieldID    m_rectLeft;
128    jfieldID    m_rectTop;
129    jmethodID   m_rectWidth;
130    jmethodID   m_rectHeight;
131    jfieldID    m_quadFP1;
132    jfieldID    m_quadFP2;
133    jfieldID    m_quadFP3;
134    jfieldID    m_quadFP4;
135    AutoJObject object(JNIEnv* env) {
136        return getRealObject(env, m_obj);
137    }
138} m_javaGlue;
139
140WebView(JNIEnv* env, jobject javaWebView, int viewImpl, WTF::String drawableDir,
141        bool isHighEndGfx)
142    : m_isHighEndGfx(isHighEndGfx)
143{
144    memset(m_extras, 0, DRAW_EXTRAS_SIZE * sizeof(DrawExtra*));
145    jclass clazz = env->FindClass("android/webkit/WebViewClassic");
146    m_javaGlue.m_obj = env->NewWeakGlobalRef(javaWebView);
147    m_javaGlue.m_scrollBy = GetJMethod(env, clazz, "setContentScrollBy", "(IIZ)Z");
148    m_javaGlue.m_getScaledMaxXScroll = GetJMethod(env, clazz, "getScaledMaxXScroll", "()I");
149    m_javaGlue.m_getScaledMaxYScroll = GetJMethod(env, clazz, "getScaledMaxYScroll", "()I");
150    m_javaGlue.m_getVisibleRect = GetJMethod(env, clazz, "sendOurVisibleRect", "()Landroid/graphics/Rect;");
151    m_javaGlue.m_viewInvalidate = GetJMethod(env, clazz, "viewInvalidate", "()V");
152    m_javaGlue.m_viewInvalidateRect = GetJMethod(env, clazz, "viewInvalidate", "(IIII)V");
153    m_javaGlue.m_postInvalidateDelayed = GetJMethod(env, clazz,
154        "viewInvalidateDelayed", "(JIIII)V");
155    m_javaGlue.m_pageSwapCallback = GetJMethod(env, clazz, "pageSwapCallback", "(Z)V");
156    env->DeleteLocalRef(clazz);
157
158    jclass rectClass = env->FindClass("android/graphics/Rect");
159    ALOG_ASSERT(rectClass, "Could not find Rect class");
160    m_javaGlue.m_rectLeft = env->GetFieldID(rectClass, "left", "I");
161    m_javaGlue.m_rectTop = env->GetFieldID(rectClass, "top", "I");
162    m_javaGlue.m_rectWidth = GetJMethod(env, rectClass, "width", "()I");
163    m_javaGlue.m_rectHeight = GetJMethod(env, rectClass, "height", "()I");
164    env->DeleteLocalRef(rectClass);
165
166    jclass quadFClass = env->FindClass("android/webkit/QuadF");
167    ALOG_ASSERT(quadFClass, "Could not find QuadF class");
168    m_javaGlue.m_quadFP1 = env->GetFieldID(quadFClass, "p1", "Landroid/graphics/PointF;");
169    m_javaGlue.m_quadFP2 = env->GetFieldID(quadFClass, "p2", "Landroid/graphics/PointF;");
170    m_javaGlue.m_quadFP3 = env->GetFieldID(quadFClass, "p3", "Landroid/graphics/PointF;");
171    m_javaGlue.m_quadFP4 = env->GetFieldID(quadFClass, "p4", "Landroid/graphics/PointF;");
172    env->DeleteLocalRef(quadFClass);
173
174    env->SetIntField(javaWebView, gWebViewField, (jint)this);
175    m_viewImpl = (WebViewCore*) viewImpl;
176    m_generation = 0;
177    m_heightCanMeasure = false;
178    m_lastDx = 0;
179    m_lastDxTime = 0;
180    m_baseLayer = 0;
181    m_glDrawFunctor = 0;
182    m_isDrawingPaused = false;
183#if USE(ACCELERATED_COMPOSITING)
184    m_glWebViewState = 0;
185#endif
186}
187
188~WebView()
189{
190    if (m_javaGlue.m_obj)
191    {
192        JNIEnv* env = JSC::Bindings::getJNIEnv();
193        env->DeleteWeakGlobalRef(m_javaGlue.m_obj);
194        m_javaGlue.m_obj = 0;
195    }
196#if USE(ACCELERATED_COMPOSITING)
197    // We must remove the m_glWebViewState prior to deleting m_baseLayer. If we
198    // do not remove it here, we risk having BaseTiles trying to paint using a
199    // deallocated base layer.
200    stopGL();
201#endif
202    SkSafeUnref(m_baseLayer);
203    delete m_glDrawFunctor;
204    for (int i = 0; i < DRAW_EXTRAS_SIZE; i++)
205        delete m_extras[i];
206}
207
208DrawExtra* getDrawExtra(DrawExtras extras)
209{
210    if (extras == DrawExtrasNone)
211        return 0;
212    return m_extras[extras - 1];
213}
214
215void stopGL()
216{
217#if USE(ACCELERATED_COMPOSITING)
218    delete m_glWebViewState;
219    m_glWebViewState = 0;
220#endif
221}
222
223WebViewCore* getWebViewCore() const {
224    return m_viewImpl;
225}
226
227void scrollRectOnScreen(const IntRect& rect)
228{
229    if (rect.isEmpty())
230        return;
231    int dx = 0;
232    int left = rect.x();
233    int right = rect.maxX();
234    if (left < m_visibleRect.fLeft)
235        dx = left - m_visibleRect.fLeft;
236    // Only scroll right if the entire width can fit on screen.
237    else if (right > m_visibleRect.fRight
238            && right - left < m_visibleRect.width())
239        dx = right - m_visibleRect.fRight;
240    int dy = 0;
241    int top = rect.y();
242    int bottom = rect.maxY();
243    if (top < m_visibleRect.fTop)
244        dy = top - m_visibleRect.fTop;
245    // Only scroll down if the entire height can fit on screen
246    else if (bottom > m_visibleRect.fBottom
247            && bottom - top < m_visibleRect.height())
248        dy = bottom - m_visibleRect.fBottom;
249    if ((dx|dy) == 0 || !scrollBy(dx, dy))
250        return;
251    viewInvalidate();
252}
253
254int drawGL(WebCore::IntRect& viewRect, WebCore::IntRect* invalRect,
255        WebCore::IntRect& webViewRect, int titleBarHeight,
256        WebCore::IntRect& clip, float scale, int extras, bool shouldDraw)
257{
258#if USE(ACCELERATED_COMPOSITING)
259    if (!m_baseLayer)
260        return 0;
261
262    if (!m_glWebViewState) {
263        TilesManager::instance()->setHighEndGfx(m_isHighEndGfx);
264        m_glWebViewState = new GLWebViewState();
265        m_glWebViewState->setBaseLayer(m_baseLayer, false, true);
266    }
267
268    DrawExtra* extra = getDrawExtra((DrawExtras) extras);
269
270    m_glWebViewState->glExtras()->setDrawExtra(extra);
271
272    // Make sure we have valid coordinates. We might not have valid coords
273    // if the zoom manager is still initializing. We will be redrawn
274    // once the correct scale is set
275    if (!m_visibleRect.isFinite())
276        return 0;
277    bool treesSwapped = false;
278    bool newTreeHasAnim = false;
279    int ret = m_glWebViewState->drawGL(viewRect, m_visibleRect, invalRect,
280                                        webViewRect, titleBarHeight, clip, scale,
281                                        &treesSwapped, &newTreeHasAnim, shouldDraw);
282    if (treesSwapped) {
283        ALOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!");
284        JNIEnv* env = JSC::Bindings::getJNIEnv();
285        AutoJObject javaObject = m_javaGlue.object(env);
286        if (javaObject.get()) {
287            env->CallVoidMethod(javaObject.get(), m_javaGlue.m_pageSwapCallback, newTreeHasAnim);
288            checkException(env);
289        }
290    }
291    return m_isDrawingPaused ? 0 : ret;
292#endif
293    return 0;
294}
295
296PictureSet* draw(SkCanvas* canvas, SkColor bgColor, DrawExtras extras, bool split)
297{
298    PictureSet* ret = 0;
299    if (!m_baseLayer) {
300        canvas->drawColor(bgColor);
301        return ret;
302    }
303
304    // draw the content of the base layer first
305    LayerContent* content = m_baseLayer->content();
306    int sc = canvas->save(SkCanvas::kClip_SaveFlag);
307    int contentWidth = 0;
308    int contentHeight = 0;
309    if (content) {
310        contentWidth = content->width();
311        contentHeight = content->height();
312    }
313    canvas->clipRect(SkRect::MakeLTRB(0, 0, contentWidth, contentHeight),
314                     SkRegion::kDifference_Op);
315    Color c = m_baseLayer->getBackgroundColor();
316    canvas->drawColor(SkColorSetARGBInline(c.alpha(), c.red(), c.green(), c.blue()));
317    canvas->restoreToCount(sc);
318
319    // call this to be sure we've adjusted for any scrolling or animations
320    // before we actually draw
321    m_baseLayer->updateLayerPositions(m_visibleRect);
322    m_baseLayer->updatePositions();
323
324    // We have to set the canvas' matrix on the base layer
325    // (to have fixed layers work as intended)
326    SkAutoCanvasRestore restore(canvas, true);
327    m_baseLayer->setMatrix(canvas->getTotalMatrix());
328    canvas->resetMatrix();
329    m_baseLayer->draw(canvas, getDrawExtra(extras));
330
331    return ret;
332}
333
334int getScaledMaxXScroll()
335{
336    ALOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!");
337    JNIEnv* env = JSC::Bindings::getJNIEnv();
338    AutoJObject javaObject = m_javaGlue.object(env);
339    if (!javaObject.get())
340        return 0;
341    int result = env->CallIntMethod(javaObject.get(), m_javaGlue.m_getScaledMaxXScroll);
342    checkException(env);
343    return result;
344}
345
346int getScaledMaxYScroll()
347{
348    ALOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!");
349    JNIEnv* env = JSC::Bindings::getJNIEnv();
350    AutoJObject javaObject = m_javaGlue.object(env);
351    if (!javaObject.get())
352        return 0;
353    int result = env->CallIntMethod(javaObject.get(), m_javaGlue.m_getScaledMaxYScroll);
354    checkException(env);
355    return result;
356}
357
358IntRect getVisibleRect()
359{
360    IntRect rect;
361    ALOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!");
362    JNIEnv* env = JSC::Bindings::getJNIEnv();
363    AutoJObject javaObject = m_javaGlue.object(env);
364    if (!javaObject.get())
365        return rect;
366    jobject jRect = env->CallObjectMethod(javaObject.get(), m_javaGlue.m_getVisibleRect);
367    checkException(env);
368    rect.setX(env->GetIntField(jRect, m_javaGlue.m_rectLeft));
369    checkException(env);
370    rect.setY(env->GetIntField(jRect, m_javaGlue.m_rectTop));
371    checkException(env);
372    rect.setWidth(env->CallIntMethod(jRect, m_javaGlue.m_rectWidth));
373    checkException(env);
374    rect.setHeight(env->CallIntMethod(jRect, m_javaGlue.m_rectHeight));
375    checkException(env);
376    env->DeleteLocalRef(jRect);
377    checkException(env);
378    return rect;
379}
380
381#if USE(ACCELERATED_COMPOSITING)
382static const ScrollableLayerAndroid* findScrollableLayer(
383    const LayerAndroid* parent, int x, int y, SkIRect* foundBounds) {
384    SkRect bounds;
385    parent->bounds(&bounds);
386    // Check the parent bounds first; this will clip to within a masking layer's
387    // bounds.
388    if (parent->masksToBounds() && !bounds.contains(x, y))
389        return 0;
390    // Move the hit test local to parent.
391    x -= bounds.fLeft;
392    y -= bounds.fTop;
393    int count = parent->countChildren();
394    while (count--) {
395        const LayerAndroid* child = parent->getChild(count);
396        const ScrollableLayerAndroid* result = findScrollableLayer(child, x, y,
397            foundBounds);
398        if (result) {
399            foundBounds->offset(bounds.fLeft, bounds.fTop);
400            if (parent->masksToBounds()) {
401                if (bounds.width() < foundBounds->width())
402                    foundBounds->fRight = foundBounds->fLeft + bounds.width();
403                if (bounds.height() < foundBounds->height())
404                    foundBounds->fBottom = foundBounds->fTop + bounds.height();
405            }
406            return result;
407        }
408    }
409    if (parent->contentIsScrollable()) {
410        foundBounds->set(0, 0, bounds.width(), bounds.height());
411        return static_cast<const ScrollableLayerAndroid*>(parent);
412    }
413    return 0;
414}
415#endif
416
417int scrollableLayer(int x, int y, SkIRect* layerRect, SkIRect* bounds)
418{
419#if USE(ACCELERATED_COMPOSITING)
420    if (!m_baseLayer)
421        return 0;
422    const ScrollableLayerAndroid* result = findScrollableLayer(m_baseLayer, x, y, bounds);
423    if (result) {
424        result->getScrollRect(layerRect);
425        return result->uniqueId();
426    }
427#endif
428    return 0;
429}
430
431void scrollLayer(int layerId, int x, int y)
432{
433    if (m_glWebViewState)
434        m_glWebViewState->scrollLayer(layerId, x, y);
435}
436
437void setHeightCanMeasure(bool measure)
438{
439    m_heightCanMeasure = measure;
440}
441
442String getSelection()
443{
444    SelectText* select = static_cast<SelectText*>(
445            getDrawExtra(WebView::DrawExtrasSelection));
446    if (select)
447        return select->getText();
448    return String();
449}
450
451bool scrollBy(int dx, int dy)
452{
453    ALOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!");
454
455    JNIEnv* env = JSC::Bindings::getJNIEnv();
456    AutoJObject javaObject = m_javaGlue.object(env);
457    if (!javaObject.get())
458        return false;
459    bool result = env->CallBooleanMethod(javaObject.get(), m_javaGlue.m_scrollBy, dx, dy, true);
460    checkException(env);
461    return result;
462}
463
464void setIsScrolling(bool isScrolling)
465{
466#if USE(ACCELERATED_COMPOSITING)
467    if (m_glWebViewState)
468        m_glWebViewState->setIsScrolling(isScrolling);
469#endif
470}
471
472void viewInvalidate()
473{
474    JNIEnv* env = JSC::Bindings::getJNIEnv();
475    AutoJObject javaObject = m_javaGlue.object(env);
476    if (!javaObject.get())
477        return;
478    env->CallVoidMethod(javaObject.get(), m_javaGlue.m_viewInvalidate);
479    checkException(env);
480}
481
482void viewInvalidateRect(int l, int t, int r, int b)
483{
484    JNIEnv* env = JSC::Bindings::getJNIEnv();
485    AutoJObject javaObject = m_javaGlue.object(env);
486    if (!javaObject.get())
487        return;
488    env->CallVoidMethod(javaObject.get(), m_javaGlue.m_viewInvalidateRect, l, r, t, b);
489    checkException(env);
490}
491
492void postInvalidateDelayed(int64_t delay, const WebCore::IntRect& bounds)
493{
494    JNIEnv* env = JSC::Bindings::getJNIEnv();
495    AutoJObject javaObject = m_javaGlue.object(env);
496    if (!javaObject.get())
497        return;
498    env->CallVoidMethod(javaObject.get(), m_javaGlue.m_postInvalidateDelayed,
499        delay, bounds.x(), bounds.y(), bounds.maxX(), bounds.maxY());
500    checkException(env);
501}
502
503#if ENABLE(ANDROID_OVERFLOW_SCROLL)
504static void copyScrollPositionRecursive(const LayerAndroid* from,
505                                        LayerAndroid* root)
506{
507    if (!from || !root)
508        return;
509    for (int i = 0; i < from->countChildren(); i++) {
510        const LayerAndroid* l = from->getChild(i);
511        if (l->contentIsScrollable()) {
512            const SkPoint& pos = l->getPosition();
513            LayerAndroid* match = root->findById(l->uniqueId());
514            if (match && match->contentIsScrollable())
515                match->setPosition(pos.fX, pos.fY);
516        }
517        copyScrollPositionRecursive(l, root);
518    }
519}
520#endif
521
522BaseLayerAndroid* getBaseLayer() const { return m_baseLayer; }
523
524bool setBaseLayer(BaseLayerAndroid* newBaseLayer, bool showVisualIndicator,
525                  bool isPictureAfterFirstLayout)
526{
527    bool queueFull = false;
528#if USE(ACCELERATED_COMPOSITING)
529    if (m_glWebViewState)
530        queueFull = m_glWebViewState->setBaseLayer(newBaseLayer, showVisualIndicator,
531                                                   isPictureAfterFirstLayout);
532#endif
533
534#if ENABLE(ANDROID_OVERFLOW_SCROLL)
535    if (newBaseLayer) {
536        // TODO: the below tree position copies are only necessary in software rendering
537        copyScrollPositionRecursive(m_baseLayer, newBaseLayer);
538    }
539#endif
540    SkSafeUnref(m_baseLayer);
541    m_baseLayer = newBaseLayer;
542
543    return queueFull;
544}
545
546void replaceBaseContent(PictureSet* set)
547{
548    if (!m_baseLayer)
549        return;
550    // TODO: remove the split picture codepath
551    delete set;
552}
553
554void copyBaseContentToPicture(SkPicture* picture)
555{
556    if (!m_baseLayer)
557        return;
558    LayerContent* content = m_baseLayer->content();
559    content->draw(picture->beginRecording(content->width(), content->height(),
560                                          SkPicture::kUsePathBoundsForClip_RecordingFlag));
561    picture->endRecording();
562}
563
564bool hasContent() {
565    if (!m_baseLayer)
566        return false;
567    return !m_baseLayer->content()->isEmpty();
568}
569
570void setFunctor(Functor* functor) {
571    delete m_glDrawFunctor;
572    m_glDrawFunctor = functor;
573}
574
575Functor* getFunctor() {
576    return m_glDrawFunctor;
577}
578
579void setVisibleRect(SkRect& visibleRect) {
580    m_visibleRect = visibleRect;
581}
582
583void setDrawExtra(DrawExtra *extra, DrawExtras type)
584{
585    if (type == DrawExtrasNone)
586        return;
587    DrawExtra* old = m_extras[type - 1];
588    m_extras[type - 1] = extra;
589    if (old != extra) {
590        delete old;
591    }
592}
593
594void setTextSelection(SelectText *selection) {
595    setDrawExtra(selection, DrawExtrasSelection);
596}
597
598const TransformationMatrix* getLayerTransform(int layerId) {
599    if (layerId != -1 && m_baseLayer) {
600        LayerAndroid* layer = m_baseLayer->findById(layerId);
601        // We need to make sure the drawTransform is up to date as this is
602        // called before a draw() or drawGL()
603        if (layer) {
604            m_baseLayer->updateLayerPositions(m_visibleRect);
605            return layer->drawTransform();
606        }
607    }
608    return 0;
609}
610
611int getHandleLayerId(SelectText::HandleId handleId, SkIPoint& cursorPoint,
612        FloatQuad& textBounds) {
613    SelectText* selectText = static_cast<SelectText*>(getDrawExtra(DrawExtrasSelection));
614    if (!selectText || !m_baseLayer)
615        return -1;
616    int layerId = selectText->caretLayerId(handleId);
617    IntRect cursorRect = selectText->caretRect(handleId);
618    IntRect textRect = selectText->textRect(handleId);
619    // Rects exclude the last pixel on right/bottom. We want only included pixels.
620    cursorPoint.set(cursorRect.x(), cursorRect.maxY() - 1);
621    textRect.setHeight(std::max(1, textRect.height() - 1));
622    textRect.setWidth(std::max(1, textRect.width() - 1));
623    textBounds = FloatQuad(textRect);
624
625    const TransformationMatrix* transform = getLayerTransform(layerId);
626    if (transform) {
627        // We're overloading the concept of Rect to be just the two
628        // points (bottom-left and top-right.
629        cursorPoint = transform->mapPoint(cursorPoint);
630        textBounds = transform->mapQuad(textBounds);
631    }
632    return layerId;
633}
634
635void mapLayerRect(int layerId, SkIRect& rect) {
636    const TransformationMatrix* transform = getLayerTransform(layerId);
637    if (transform)
638        transform->mapRect(rect);
639}
640
641void floatQuadToQuadF(JNIEnv* env, const FloatQuad& nativeTextQuad,
642        jobject textQuad)
643{
644    jobject p1 = env->GetObjectField(textQuad, m_javaGlue.m_quadFP1);
645    jobject p2 = env->GetObjectField(textQuad, m_javaGlue.m_quadFP2);
646    jobject p3 = env->GetObjectField(textQuad, m_javaGlue.m_quadFP3);
647    jobject p4 = env->GetObjectField(textQuad, m_javaGlue.m_quadFP4);
648    GraphicsJNI::point_to_jpointf(nativeTextQuad.p1(), env, p1);
649    GraphicsJNI::point_to_jpointf(nativeTextQuad.p2(), env, p2);
650    GraphicsJNI::point_to_jpointf(nativeTextQuad.p3(), env, p3);
651    GraphicsJNI::point_to_jpointf(nativeTextQuad.p4(), env, p4);
652    env->DeleteLocalRef(p1);
653    env->DeleteLocalRef(p2);
654    env->DeleteLocalRef(p3);
655    env->DeleteLocalRef(p4);
656}
657
658// This is called when WebView switches rendering modes in a more permanent fashion
659// such as when the layer type is set or the view is attached/detached from the window
660int setHwAccelerated(bool hwAccelerated) {
661    if (!m_glWebViewState)
662        return 0;
663    LayerAndroid* root = m_baseLayer;
664    if (root)
665        return root->setHwAccelerated(hwAccelerated);
666    return 0;
667}
668
669    bool m_isDrawingPaused;
670private: // local state for WebView
671    // private to getFrameCache(); other functions operate in a different thread
672    WebViewCore* m_viewImpl;
673    int m_generation; // associate unique ID with sent kit focus to match with ui
674    // Corresponds to the same-named boolean on the java side.
675    bool m_heightCanMeasure;
676    int m_lastDx;
677    SkMSec m_lastDxTime;
678    DrawExtra* m_extras[DRAW_EXTRAS_SIZE];
679    BaseLayerAndroid* m_baseLayer;
680    Functor* m_glDrawFunctor;
681#if USE(ACCELERATED_COMPOSITING)
682    GLWebViewState* m_glWebViewState;
683#endif
684    SkRect m_visibleRect;
685    bool m_isHighEndGfx;
686}; // end of WebView class
687
688
689/**
690 * This class holds a function pointer and parameters for calling drawGL into a specific
691 * viewport. The pointer to the Functor will be put on a framework display list to be called
692 * when the display list is replayed.
693 */
694class GLDrawFunctor : Functor {
695    public:
696    GLDrawFunctor(WebView* _wvInstance,
697            int (WebView::*_funcPtr)(WebCore::IntRect&, WebCore::IntRect*,
698                    WebCore::IntRect&, int, WebCore::IntRect&, jfloat, jint, bool),
699            WebCore::IntRect _viewRect, float _scale, int _extras) {
700        wvInstance = _wvInstance;
701        funcPtr = _funcPtr;
702        viewRect = _viewRect;
703        scale = _scale;
704        extras = _extras;
705    };
706
707    status_t operator()(int messageId, void* data) {
708        TRACE_METHOD();
709
710        if (viewRect.isEmpty()) {
711            // NOOP operation if viewport is empty
712            return 0;
713        }
714
715        WebCore::IntRect inval;
716        int titlebarHeight = webViewRect.height() - viewRect.height();
717
718        uirenderer::DrawGlInfo* info = reinterpret_cast<uirenderer::DrawGlInfo*>(data);
719        WebCore::IntRect clip(info->clipLeft, info->clipTop,
720                              info->clipRight - info->clipLeft,
721                              info->clipBottom - info->clipTop);
722
723        WebCore::IntRect localViewRect = viewRect;
724        if (info->isLayer) {
725            // When webview is on a layer, we need to use the viewport relative
726            // to the FBO, rather than the screen(which will use viewRect).
727            localViewRect.setX(clip.x());
728            localViewRect.setY(info->height - clip.y() - clip.height());
729        }
730        bool shouldDraw = (messageId == uirenderer::DrawGlInfo::kModeDraw);
731        // Send the necessary info to the shader.
732        TilesManager::instance()->shader()->setGLDrawInfo(info);
733
734        int returnFlags = (*wvInstance.*funcPtr)(localViewRect, &inval, webViewRect,
735                titlebarHeight, clip, scale, extras, shouldDraw);
736        if ((returnFlags & uirenderer::DrawGlInfo::kStatusDraw) != 0) {
737            IntRect finalInval;
738            if (inval.isEmpty())
739                finalInval = webViewRect;
740            else {
741                finalInval.setX(webViewRect.x() + inval.x());
742                finalInval.setY(webViewRect.y() + titlebarHeight + inval.y());
743                finalInval.setWidth(inval.width());
744                finalInval.setHeight(inval.height());
745            }
746            info->dirtyLeft = finalInval.x();
747            info->dirtyTop = finalInval.y();
748            info->dirtyRight = finalInval.maxX();
749            info->dirtyBottom = finalInval.maxY();
750        }
751        // return 1 if invalidation needed, 2 to request non-drawing functor callback, 0 otherwise
752        ALOGV("returnFlags are %d, shouldDraw %d", returnFlags, shouldDraw);
753        return returnFlags;
754    }
755    void updateRect(WebCore::IntRect& _viewRect) {
756        viewRect = _viewRect;
757    }
758    void updateViewRect(WebCore::IntRect& _viewRect) {
759        webViewRect = _viewRect;
760    }
761    void updateScale(float _scale) {
762        scale = _scale;
763    }
764    private:
765    WebView* wvInstance;
766    int (WebView::*funcPtr)(WebCore::IntRect&, WebCore::IntRect*,
767            WebCore::IntRect&, int, WebCore::IntRect&, float, int, bool);
768    WebCore::IntRect viewRect;
769    WebCore::IntRect webViewRect;
770    jfloat scale;
771    jint extras;
772};
773
774/*
775 * Native JNI methods
776 */
777
778static void nativeCreate(JNIEnv *env, jobject obj, int viewImpl,
779                         jstring drawableDir, jboolean isHighEndGfx)
780{
781    WTF::String dir = jstringToWtfString(env, drawableDir);
782    new WebView(env, obj, viewImpl, dir, isHighEndGfx);
783    // NEED THIS OR SOMETHING LIKE IT!
784    //Release(obj);
785}
786
787static WebCore::IntRect jrect_to_webrect(JNIEnv* env, jobject obj)
788{
789    if (obj) {
790        int L, T, R, B;
791        GraphicsJNI::get_jrect(env, obj, &L, &T, &R, &B);
792        return WebCore::IntRect(L, T, R - L, B - T);
793    } else
794        return WebCore::IntRect();
795}
796
797static SkRect jrectf_to_rect(JNIEnv* env, jobject obj)
798{
799    SkRect rect = SkRect::MakeEmpty();
800    if (obj)
801        GraphicsJNI::jrectf_to_rect(env, obj, &rect);
802    return rect;
803}
804
805static jint nativeDraw(JNIEnv *env, jobject obj, jobject canv,
806        jobject visible, jint color,
807        jint extras, jboolean split) {
808    SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, canv);
809    WebView* webView = GET_NATIVE_VIEW(env, obj);
810    SkRect visibleRect = jrectf_to_rect(env, visible);
811    webView->setVisibleRect(visibleRect);
812    PictureSet* pictureSet = webView->draw(canvas, color,
813            static_cast<WebView::DrawExtras>(extras), split);
814    return reinterpret_cast<jint>(pictureSet);
815}
816
817static jint nativeCreateDrawGLFunction(JNIEnv *env, jobject obj, jint nativeView,
818                                    jobject jrect, jobject jviewrect,
819                                    jobject jvisiblerect,
820                                    jfloat scale, jint extras) {
821    WebCore::IntRect viewRect = jrect_to_webrect(env, jrect);
822    WebView *wvInstance = (WebView*) nativeView;
823    SkRect visibleRect = jrectf_to_rect(env, jvisiblerect);
824    wvInstance->setVisibleRect(visibleRect);
825
826    GLDrawFunctor* functor = new GLDrawFunctor(wvInstance,
827            &android::WebView::drawGL, viewRect, scale, extras);
828    wvInstance->setFunctor((Functor*) functor);
829
830    WebCore::IntRect webViewRect = jrect_to_webrect(env, jviewrect);
831    functor->updateViewRect(webViewRect);
832
833    return (jint)functor;
834}
835
836static jint nativeGetDrawGLFunction(JNIEnv *env, jobject obj, jint nativeView) {
837    WebView *wvInstance = (WebView*) nativeView;
838    if (!wvInstance)
839        return 0;
840
841    return (jint) wvInstance->getFunctor();
842}
843
844static void nativeUpdateDrawGLFunction(JNIEnv *env, jobject obj, jint nativeView, jobject jrect,
845        jobject jviewrect, jobject jvisiblerect, jfloat scale) {
846    WebView *wvInstance = (WebView*) nativeView;
847    if (wvInstance) {
848        GLDrawFunctor* functor = (GLDrawFunctor*) wvInstance->getFunctor();
849        if (functor) {
850            WebCore::IntRect viewRect = jrect_to_webrect(env, jrect);
851            functor->updateRect(viewRect);
852
853            SkRect visibleRect = jrectf_to_rect(env, jvisiblerect);
854            wvInstance->setVisibleRect(visibleRect);
855
856            WebCore::IntRect webViewRect = jrect_to_webrect(env, jviewrect);
857            functor->updateViewRect(webViewRect);
858
859            functor->updateScale(scale);
860        }
861    }
862}
863
864static bool nativeEvaluateLayersAnimations(JNIEnv *env, jobject obj, jint nativeView)
865{
866    // only call in software rendering, initialize and evaluate animations
867#if USE(ACCELERATED_COMPOSITING)
868    BaseLayerAndroid* baseLayer = ((WebView*)nativeView)->getBaseLayer();
869    if (baseLayer) {
870        baseLayer->initAnimations();
871        return baseLayer->evaluateAnimations();
872    }
873#endif
874    return false;
875}
876
877static bool nativeSetBaseLayer(JNIEnv *env, jobject obj, jint nativeView, jint layer,
878                               jboolean showVisualIndicator,
879                               jboolean isPictureAfterFirstLayout)
880{
881    BaseLayerAndroid* layerImpl = reinterpret_cast<BaseLayerAndroid*>(layer);
882    return ((WebView*)nativeView)->setBaseLayer(layerImpl, showVisualIndicator,
883                                                isPictureAfterFirstLayout);
884}
885
886static BaseLayerAndroid* nativeGetBaseLayer(JNIEnv *env, jobject obj)
887{
888    return GET_NATIVE_VIEW(env, obj)->getBaseLayer();
889}
890
891static void nativeReplaceBaseContent(JNIEnv *env, jobject obj, jint content)
892{
893    PictureSet* set = reinterpret_cast<PictureSet*>(content);
894    GET_NATIVE_VIEW(env, obj)->replaceBaseContent(set);
895}
896
897static void nativeCopyBaseContentToPicture(JNIEnv *env, jobject obj, jobject pict)
898{
899    SkPicture* picture = GraphicsJNI::getNativePicture(env, pict);
900    GET_NATIVE_VIEW(env, obj)->copyBaseContentToPicture(picture);
901}
902
903static bool nativeHasContent(JNIEnv *env, jobject obj)
904{
905    return GET_NATIVE_VIEW(env, obj)->hasContent();
906}
907
908static jobject nativeLayerBounds(JNIEnv* env, jobject obj, jint jlayer)
909{
910    SkRect r;
911#if USE(ACCELERATED_COMPOSITING)
912    LayerAndroid* layer = (LayerAndroid*) jlayer;
913    r = layer->bounds();
914#else
915    r.setEmpty();
916#endif
917    SkIRect irect;
918    r.round(&irect);
919    jclass rectClass = env->FindClass("android/graphics/Rect");
920    jmethodID init = env->GetMethodID(rectClass, "<init>", "(IIII)V");
921    jobject rect = env->NewObject(rectClass, init, irect.fLeft, irect.fTop,
922        irect.fRight, irect.fBottom);
923    env->DeleteLocalRef(rectClass);
924    return rect;
925}
926
927static void nativeSetHeightCanMeasure(JNIEnv *env, jobject obj, bool measure)
928{
929    WebView* view = GET_NATIVE_VIEW(env, obj);
930    ALOG_ASSERT(view, "view not set in nativeSetHeightCanMeasure");
931    view->setHeightCanMeasure(measure);
932}
933
934static void nativeDestroy(JNIEnv *env, jobject obj)
935{
936    WebView* view = GET_NATIVE_VIEW(env, obj);
937    ALOGD("nativeDestroy view: %p", view);
938    ALOG_ASSERT(view, "view not set in nativeDestroy");
939    delete view;
940}
941
942static void nativeStopGL(JNIEnv *env, jobject obj)
943{
944    GET_NATIVE_VIEW(env, obj)->stopGL();
945}
946
947static jobject nativeGetSelection(JNIEnv *env, jobject obj)
948{
949    WebView* view = GET_NATIVE_VIEW(env, obj);
950    ALOG_ASSERT(view, "view not set in %s", __FUNCTION__);
951    String selection = view->getSelection();
952    return wtfStringToJstring(env, selection);
953}
954
955static void nativeDiscardAllTextures(JNIEnv *env, jobject obj)
956{
957    //discard all textures for debugging/test purposes, but not gl backing memory
958    bool allTextures = true, deleteGLTextures = false;
959    TilesManager::instance()->discardTextures(allTextures, deleteGLTextures);
960}
961
962static void nativeTileProfilingStart(JNIEnv *env, jobject obj)
963{
964    TilesManager::instance()->getProfiler()->start();
965}
966
967static float nativeTileProfilingStop(JNIEnv *env, jobject obj)
968{
969    return TilesManager::instance()->getProfiler()->stop();
970}
971
972static void nativeTileProfilingClear(JNIEnv *env, jobject obj)
973{
974    TilesManager::instance()->getProfiler()->clear();
975}
976
977static int nativeTileProfilingNumFrames(JNIEnv *env, jobject obj)
978{
979    return TilesManager::instance()->getProfiler()->numFrames();
980}
981
982static int nativeTileProfilingNumTilesInFrame(JNIEnv *env, jobject obj, int frame)
983{
984    return TilesManager::instance()->getProfiler()->numTilesInFrame(frame);
985}
986
987static int nativeTileProfilingGetInt(JNIEnv *env, jobject obj, int frame, int tile, jstring jkey)
988{
989    WTF::String key = jstringToWtfString(env, jkey);
990    TileProfileRecord* record = TilesManager::instance()->getProfiler()->getTile(frame, tile);
991
992    if (key == "left")
993        return record->left;
994    if (key == "top")
995        return record->top;
996    if (key == "right")
997        return record->right;
998    if (key == "bottom")
999        return record->bottom;
1000    if (key == "level")
1001        return record->level;
1002    if (key == "isReady")
1003        return record->isReady ? 1 : 0;
1004    return -1;
1005}
1006
1007static float nativeTileProfilingGetFloat(JNIEnv *env, jobject obj, int frame, int tile, jstring jkey)
1008{
1009    TileProfileRecord* record = TilesManager::instance()->getProfiler()->getTile(frame, tile);
1010    return record->scale;
1011}
1012
1013#ifdef ANDROID_DUMP_DISPLAY_TREE
1014static void dumpToFile(const char text[], void* file) {
1015    fwrite(text, 1, strlen(text), reinterpret_cast<FILE*>(file));
1016    fwrite("\n", 1, 1, reinterpret_cast<FILE*>(file));
1017}
1018#endif
1019
1020// Return true to view invalidate WebView
1021static bool nativeSetProperty(JNIEnv *env, jobject obj, jstring jkey, jstring jvalue)
1022{
1023    WTF::String key = jstringToWtfString(env, jkey);
1024    WTF::String value = jstringToWtfString(env, jvalue);
1025    if (key == "inverted") {
1026        bool shouldInvert = (value == "true");
1027        TilesManager::instance()->setInvertedScreen(shouldInvert);
1028        return true;
1029    }
1030    else if (key == "inverted_contrast") {
1031        float contrast = value.toFloat();
1032        TilesManager::instance()->setInvertedScreenContrast(contrast);
1033        return true;
1034    }
1035    else if (key == "enable_cpu_upload_path") {
1036        TilesManager::instance()->transferQueue()->setTextureUploadType(
1037            value == "true" ? CpuUpload : GpuUpload);
1038    }
1039    else if (key == "use_minimal_memory") {
1040        TilesManager::instance()->setUseMinimalMemory(value == "true");
1041    }
1042    else if (key == "use_double_buffering") {
1043        TilesManager::instance()->setUseDoubleBuffering(value == "true");
1044    }
1045    else if (key == "tree_updates") {
1046        TilesManager::instance()->clearContentUpdates();
1047    }
1048    return false;
1049}
1050
1051static jstring nativeGetProperty(JNIEnv *env, jobject obj, jstring jkey)
1052{
1053    WTF::String key = jstringToWtfString(env, jkey);
1054    if (key == "tree_updates") {
1055        int updates = TilesManager::instance()->getContentUpdates();
1056        WTF::String wtfUpdates = WTF::String::number(updates);
1057        return wtfStringToJstring(env, wtfUpdates);
1058    }
1059    return 0;
1060}
1061
1062static void nativeOnTrimMemory(JNIEnv *env, jobject obj, jint level)
1063{
1064    if (TilesManager::hardwareAccelerationEnabled()) {
1065        // When we got TRIM_MEMORY_MODERATE or TRIM_MEMORY_COMPLETE, we should
1066        // make sure the transfer queue is empty and then abandon the Surface
1067        // Texture to avoid ANR b/c framework may destroy the EGL context.
1068        // Refer to WindowManagerImpl.java for conditions we followed.
1069        TilesManager* tilesManager = TilesManager::instance();
1070        if ((level >= TRIM_MEMORY_MODERATE
1071            && !tilesManager->highEndGfx())
1072            || level >= TRIM_MEMORY_COMPLETE) {
1073            ALOGD("OnTrimMemory with EGL Context %p", eglGetCurrentContext());
1074            tilesManager->cleanupGLResources();
1075        }
1076
1077        bool freeAllTextures = (level > TRIM_MEMORY_UI_HIDDEN), glTextures = true;
1078        tilesManager->discardTextures(freeAllTextures, glTextures);
1079    }
1080}
1081
1082static void nativeDumpDisplayTree(JNIEnv* env, jobject jwebview, jstring jurl)
1083{
1084#ifdef ANDROID_DUMP_DISPLAY_TREE
1085    WebView* view = GET_NATIVE_VIEW(env, jwebview);
1086    ALOG_ASSERT(view, "view not set in %s", __FUNCTION__);
1087
1088    if (view && view->getWebViewCore()) {
1089        FILE* file = fopen(DISPLAY_TREE_LOG_FILE, "w");
1090        if (file) {
1091            SkFormatDumper dumper(dumpToFile, file);
1092            // dump the URL
1093            if (jurl) {
1094                const char* str = env->GetStringUTFChars(jurl, 0);
1095                SkDebugf("Dumping %s to %s\n", str, DISPLAY_TREE_LOG_FILE);
1096                dumpToFile(str, file);
1097                env->ReleaseStringUTFChars(jurl, str);
1098            }
1099            // now dump the display tree
1100            SkDumpCanvas canvas(&dumper);
1101            // this will playback the picture into the canvas, which will
1102            // spew its contents to the dumper
1103            view->draw(&canvas, 0, WebView::DrawExtrasNone, false);
1104            // we're done with the file now
1105            fwrite("\n", 1, 1, file);
1106            fclose(file);
1107        }
1108#if USE(ACCELERATED_COMPOSITING)
1109        const LayerAndroid* baseLayer = view->getBaseLayer();
1110        if (baseLayer) {
1111          FILE* file = fopen(LAYERS_TREE_LOG_FILE,"w");
1112          if (file) {
1113              baseLayer->dumpLayers(file, 0);
1114              fclose(file);
1115          }
1116        }
1117#endif
1118    }
1119#endif
1120}
1121
1122static int nativeScrollableLayer(JNIEnv* env, jobject jwebview, jint nativeView,
1123    jint x, jint y, jobject rect, jobject bounds)
1124{
1125    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1126    ALOG_ASSERT(webview, "webview not set in %s", __FUNCTION__);
1127    SkIRect nativeRect, nativeBounds;
1128    int id = webview->scrollableLayer(x, y, &nativeRect, &nativeBounds);
1129    if (rect)
1130        GraphicsJNI::irect_to_jrect(nativeRect, env, rect);
1131    if (bounds)
1132        GraphicsJNI::irect_to_jrect(nativeBounds, env, bounds);
1133    return id;
1134}
1135
1136static bool nativeScrollLayer(JNIEnv* env, jobject obj,
1137    jint nativeView, jint layerId, jint x, jint y)
1138{
1139#if ENABLE(ANDROID_OVERFLOW_SCROLL)
1140    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1141    webview->scrollLayer(layerId, x, y);
1142
1143    //TODO: the below only needed for the SW rendering path
1144    LayerAndroid* baseLayer = webview->getBaseLayer();
1145    if (!baseLayer)
1146        return false;
1147    LayerAndroid* layer = baseLayer->findById(layerId);
1148    if (!layer || !layer->contentIsScrollable())
1149        return false;
1150    return static_cast<ScrollableLayerAndroid*>(layer)->scrollTo(x, y);
1151#endif
1152    return false;
1153}
1154
1155static void nativeSetIsScrolling(JNIEnv* env, jobject jwebview, jboolean isScrolling)
1156{
1157    WebView* view = GET_NATIVE_VIEW(env, jwebview);
1158    ALOG_ASSERT(view, "view not set in %s", __FUNCTION__);
1159    view->setIsScrolling(isScrolling);
1160}
1161
1162static void nativeUseHardwareAccelSkia(JNIEnv*, jobject, jboolean enabled)
1163{
1164    BaseRenderer::setCurrentRendererType(enabled ? BaseRenderer::Ganesh : BaseRenderer::Raster);
1165}
1166
1167static int nativeGetBackgroundColor(JNIEnv* env, jobject obj)
1168{
1169    WebView* view = GET_NATIVE_VIEW(env, obj);
1170    BaseLayerAndroid* baseLayer = view->getBaseLayer();
1171    if (baseLayer) {
1172        WebCore::Color color = baseLayer->getBackgroundColor();
1173        if (color.isValid())
1174            return SkColorSetARGB(color.alpha(), color.red(),
1175                                  color.green(), color.blue());
1176    }
1177    return SK_ColorWHITE;
1178}
1179
1180static void nativeSetPauseDrawing(JNIEnv *env, jobject obj, jint nativeView,
1181                                      jboolean pause)
1182{
1183    ((WebView*)nativeView)->m_isDrawingPaused = pause;
1184}
1185
1186static void nativeSetTextSelection(JNIEnv *env, jobject obj, jint nativeView,
1187                                   jint selectionPtr)
1188{
1189    SelectText* selection = reinterpret_cast<SelectText*>(selectionPtr);
1190    reinterpret_cast<WebView*>(nativeView)->setTextSelection(selection);
1191}
1192
1193static jint nativeGetHandleLayerId(JNIEnv *env, jobject obj, jint nativeView,
1194                                     jint handleIndex, jobject cursorPoint,
1195                                     jobject textQuad)
1196{
1197    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1198    SkIPoint nativePoint;
1199    FloatQuad nativeTextQuad;
1200    int layerId = webview->getHandleLayerId((SelectText::HandleId) handleIndex,
1201            nativePoint, nativeTextQuad);
1202    if (cursorPoint)
1203        GraphicsJNI::ipoint_to_jpoint(nativePoint, env, cursorPoint);
1204    if (textQuad)
1205        webview->floatQuadToQuadF(env, nativeTextQuad, textQuad);
1206    return layerId;
1207}
1208
1209static jboolean nativeIsBaseFirst(JNIEnv *env, jobject obj, jint nativeView)
1210{
1211    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1212    SelectText* select = static_cast<SelectText*>(
1213            webview->getDrawExtra(WebView::DrawExtrasSelection));
1214    return select ? select->isBaseFirst() : false;
1215}
1216
1217static void nativeMapLayerRect(JNIEnv *env, jobject obj, jint nativeView,
1218        jint layerId, jobject rect)
1219{
1220    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1221    SkIRect nativeRect;
1222    GraphicsJNI::jrect_to_irect(env, rect, &nativeRect);
1223    webview->mapLayerRect(layerId, nativeRect);
1224    GraphicsJNI::irect_to_jrect(nativeRect, env, rect);
1225}
1226
1227static jint nativeSetHwAccelerated(JNIEnv *env, jobject obj, jint nativeView,
1228        jboolean hwAccelerated)
1229{
1230    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1231    return webview->setHwAccelerated(hwAccelerated);
1232}
1233
1234/*
1235 * JNI registration
1236 */
1237static JNINativeMethod gJavaWebViewMethods[] = {
1238    { "nativeCreate", "(ILjava/lang/String;Z)V",
1239        (void*) nativeCreate },
1240    { "nativeDestroy", "()V",
1241        (void*) nativeDestroy },
1242    { "nativeDraw", "(Landroid/graphics/Canvas;Landroid/graphics/RectF;IIZ)I",
1243        (void*) nativeDraw },
1244    { "nativeCreateDrawGLFunction", "(ILandroid/graphics/Rect;Landroid/graphics/Rect;Landroid/graphics/RectF;FI)I",
1245        (void*) nativeCreateDrawGLFunction },
1246    { "nativeGetDrawGLFunction", "(I)I",
1247        (void*) nativeGetDrawGLFunction },
1248    { "nativeUpdateDrawGLFunction", "(ILandroid/graphics/Rect;Landroid/graphics/Rect;Landroid/graphics/RectF;F)V",
1249        (void*) nativeUpdateDrawGLFunction },
1250    { "nativeDumpDisplayTree", "(Ljava/lang/String;)V",
1251        (void*) nativeDumpDisplayTree },
1252    { "nativeEvaluateLayersAnimations", "(I)Z",
1253        (void*) nativeEvaluateLayersAnimations },
1254    { "nativeGetSelection", "()Ljava/lang/String;",
1255        (void*) nativeGetSelection },
1256    { "nativeLayerBounds", "(I)Landroid/graphics/Rect;",
1257        (void*) nativeLayerBounds },
1258    { "nativeSetHeightCanMeasure", "(Z)V",
1259        (void*) nativeSetHeightCanMeasure },
1260    { "nativeSetBaseLayer", "(IIZZ)Z",
1261        (void*) nativeSetBaseLayer },
1262    { "nativeGetBaseLayer", "()I",
1263        (void*) nativeGetBaseLayer },
1264    { "nativeReplaceBaseContent", "(I)V",
1265        (void*) nativeReplaceBaseContent },
1266    { "nativeCopyBaseContentToPicture", "(Landroid/graphics/Picture;)V",
1267        (void*) nativeCopyBaseContentToPicture },
1268    { "nativeHasContent", "()Z",
1269        (void*) nativeHasContent },
1270    { "nativeDiscardAllTextures", "()V",
1271        (void*) nativeDiscardAllTextures },
1272    { "nativeTileProfilingStart", "()V",
1273        (void*) nativeTileProfilingStart },
1274    { "nativeTileProfilingStop", "()F",
1275        (void*) nativeTileProfilingStop },
1276    { "nativeTileProfilingClear", "()V",
1277        (void*) nativeTileProfilingClear },
1278    { "nativeTileProfilingNumFrames", "()I",
1279        (void*) nativeTileProfilingNumFrames },
1280    { "nativeTileProfilingNumTilesInFrame", "(I)I",
1281        (void*) nativeTileProfilingNumTilesInFrame },
1282    { "nativeTileProfilingGetInt", "(IILjava/lang/String;)I",
1283        (void*) nativeTileProfilingGetInt },
1284    { "nativeTileProfilingGetFloat", "(IILjava/lang/String;)F",
1285        (void*) nativeTileProfilingGetFloat },
1286    { "nativeStopGL", "()V",
1287        (void*) nativeStopGL },
1288    { "nativeScrollableLayer", "(IIILandroid/graphics/Rect;Landroid/graphics/Rect;)I",
1289        (void*) nativeScrollableLayer },
1290    { "nativeScrollLayer", "(IIII)Z",
1291        (void*) nativeScrollLayer },
1292    { "nativeSetIsScrolling", "(Z)V",
1293        (void*) nativeSetIsScrolling },
1294    { "nativeUseHardwareAccelSkia", "(Z)V",
1295        (void*) nativeUseHardwareAccelSkia },
1296    { "nativeGetBackgroundColor", "()I",
1297        (void*) nativeGetBackgroundColor },
1298    { "nativeSetProperty", "(Ljava/lang/String;Ljava/lang/String;)Z",
1299        (void*) nativeSetProperty },
1300    { "nativeGetProperty", "(Ljava/lang/String;)Ljava/lang/String;",
1301        (void*) nativeGetProperty },
1302    { "nativeOnTrimMemory", "(I)V",
1303        (void*) nativeOnTrimMemory },
1304    { "nativeSetPauseDrawing", "(IZ)V",
1305        (void*) nativeSetPauseDrawing },
1306    { "nativeSetTextSelection", "(II)V",
1307        (void*) nativeSetTextSelection },
1308    { "nativeGetHandleLayerId", "(IILandroid/graphics/Point;Landroid/webkit/QuadF;)I",
1309        (void*) nativeGetHandleLayerId },
1310    { "nativeIsBaseFirst", "(I)Z",
1311        (void*) nativeIsBaseFirst },
1312    { "nativeMapLayerRect", "(IILandroid/graphics/Rect;)V",
1313        (void*) nativeMapLayerRect },
1314    { "nativeSetHwAccelerated", "(IZ)I",
1315        (void*) nativeSetHwAccelerated },
1316};
1317
1318int registerWebView(JNIEnv* env)
1319{
1320    jclass clazz = env->FindClass("android/webkit/WebViewClassic");
1321    ALOG_ASSERT(clazz, "Unable to find class android/webkit/WebViewClassic");
1322    gWebViewField = env->GetFieldID(clazz, "mNativeClass", "I");
1323    ALOG_ASSERT(gWebViewField, "Unable to find android/webkit/WebViewClassic.mNativeClass");
1324    env->DeleteLocalRef(clazz);
1325
1326    return jniRegisterNativeMethods(env, "android/webkit/WebViewClassic", gJavaWebViewMethods, NELEM(gJavaWebViewMethods));
1327}
1328
1329} // namespace android
1330