WebView.cpp revision e859a34171f2a36877d95197d118d962078f8aa0 
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
296void draw(SkCanvas* canvas, SkColor bgColor, DrawExtras extras)
297{
298    if (!m_baseLayer) {
299        canvas->drawColor(bgColor);
300        return;
301    }
302
303    // draw the content of the base layer first
304    LayerContent* content = m_baseLayer->content();
305    int sc = canvas->save(SkCanvas::kClip_SaveFlag);
306    int contentWidth = 0;
307    int contentHeight = 0;
308    if (content) {
309        contentWidth = content->width();
310        contentHeight = content->height();
311    }
312    canvas->clipRect(SkRect::MakeLTRB(0, 0, contentWidth, contentHeight),
313                     SkRegion::kDifference_Op);
314    Color c = m_baseLayer->getBackgroundColor();
315    canvas->drawColor(SkColorSetARGBInline(c.alpha(), c.red(), c.green(), c.blue()));
316    canvas->restoreToCount(sc);
317
318    // call this to be sure we've adjusted for any scrolling or animations
319    // before we actually draw
320    m_baseLayer->updateLayerPositions(m_visibleRect);
321    m_baseLayer->updatePositions();
322
323    // We have to set the canvas' matrix on the base layer
324    // (to have fixed layers work as intended)
325    SkAutoCanvasRestore restore(canvas, true);
326    m_baseLayer->setMatrix(canvas->getTotalMatrix());
327    canvas->resetMatrix();
328    m_baseLayer->draw(canvas, getDrawExtra(extras));
329}
330
331int getScaledMaxXScroll()
332{
333    ALOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!");
334    JNIEnv* env = JSC::Bindings::getJNIEnv();
335    AutoJObject javaObject = m_javaGlue.object(env);
336    if (!javaObject.get())
337        return 0;
338    int result = env->CallIntMethod(javaObject.get(), m_javaGlue.m_getScaledMaxXScroll);
339    checkException(env);
340    return result;
341}
342
343int getScaledMaxYScroll()
344{
345    ALOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!");
346    JNIEnv* env = JSC::Bindings::getJNIEnv();
347    AutoJObject javaObject = m_javaGlue.object(env);
348    if (!javaObject.get())
349        return 0;
350    int result = env->CallIntMethod(javaObject.get(), m_javaGlue.m_getScaledMaxYScroll);
351    checkException(env);
352    return result;
353}
354
355IntRect getVisibleRect()
356{
357    IntRect rect;
358    ALOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!");
359    JNIEnv* env = JSC::Bindings::getJNIEnv();
360    AutoJObject javaObject = m_javaGlue.object(env);
361    if (!javaObject.get())
362        return rect;
363    jobject jRect = env->CallObjectMethod(javaObject.get(), m_javaGlue.m_getVisibleRect);
364    checkException(env);
365    rect.setX(env->GetIntField(jRect, m_javaGlue.m_rectLeft));
366    checkException(env);
367    rect.setY(env->GetIntField(jRect, m_javaGlue.m_rectTop));
368    checkException(env);
369    rect.setWidth(env->CallIntMethod(jRect, m_javaGlue.m_rectWidth));
370    checkException(env);
371    rect.setHeight(env->CallIntMethod(jRect, m_javaGlue.m_rectHeight));
372    checkException(env);
373    env->DeleteLocalRef(jRect);
374    checkException(env);
375    return rect;
376}
377
378#if USE(ACCELERATED_COMPOSITING)
379static const ScrollableLayerAndroid* findScrollableLayer(
380    const LayerAndroid* parent, int x, int y, SkIRect* foundBounds) {
381    SkRect bounds;
382    parent->bounds(&bounds);
383    // Check the parent bounds first; this will clip to within a masking layer's
384    // bounds.
385    if (parent->masksToBounds() && !bounds.contains(x, y))
386        return 0;
387    // Move the hit test local to parent.
388    x -= bounds.fLeft;
389    y -= bounds.fTop;
390    int count = parent->countChildren();
391    while (count--) {
392        const LayerAndroid* child = parent->getChild(count);
393        const ScrollableLayerAndroid* result = findScrollableLayer(child, x, y,
394            foundBounds);
395        if (result) {
396            foundBounds->offset(bounds.fLeft, bounds.fTop);
397            if (parent->masksToBounds()) {
398                if (bounds.width() < foundBounds->width())
399                    foundBounds->fRight = foundBounds->fLeft + bounds.width();
400                if (bounds.height() < foundBounds->height())
401                    foundBounds->fBottom = foundBounds->fTop + bounds.height();
402            }
403            return result;
404        }
405    }
406    if (parent->contentIsScrollable()) {
407        foundBounds->set(0, 0, bounds.width(), bounds.height());
408        return static_cast<const ScrollableLayerAndroid*>(parent);
409    }
410    return 0;
411}
412#endif
413
414int scrollableLayer(int x, int y, SkIRect* layerRect, SkIRect* bounds)
415{
416#if USE(ACCELERATED_COMPOSITING)
417    if (!m_baseLayer)
418        return 0;
419    const ScrollableLayerAndroid* result = findScrollableLayer(m_baseLayer, x, y, bounds);
420    if (result) {
421        result->getScrollRect(layerRect);
422        return result->uniqueId();
423    }
424#endif
425    return 0;
426}
427
428void scrollLayer(int layerId, int x, int y)
429{
430    if (m_glWebViewState)
431        m_glWebViewState->scrollLayer(layerId, x, y);
432}
433
434void setHeightCanMeasure(bool measure)
435{
436    m_heightCanMeasure = measure;
437}
438
439String getSelection()
440{
441    SelectText* select = static_cast<SelectText*>(
442            getDrawExtra(WebView::DrawExtrasSelection));
443    if (select)
444        return select->getText();
445    return String();
446}
447
448bool scrollBy(int dx, int dy)
449{
450    ALOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!");
451
452    JNIEnv* env = JSC::Bindings::getJNIEnv();
453    AutoJObject javaObject = m_javaGlue.object(env);
454    if (!javaObject.get())
455        return false;
456    bool result = env->CallBooleanMethod(javaObject.get(), m_javaGlue.m_scrollBy, dx, dy, true);
457    checkException(env);
458    return result;
459}
460
461void setIsScrolling(bool isScrolling)
462{
463#if USE(ACCELERATED_COMPOSITING)
464    if (m_glWebViewState)
465        m_glWebViewState->setIsScrolling(isScrolling);
466#endif
467}
468
469void viewInvalidate()
470{
471    JNIEnv* env = JSC::Bindings::getJNIEnv();
472    AutoJObject javaObject = m_javaGlue.object(env);
473    if (!javaObject.get())
474        return;
475    env->CallVoidMethod(javaObject.get(), m_javaGlue.m_viewInvalidate);
476    checkException(env);
477}
478
479void viewInvalidateRect(int l, int t, int r, int b)
480{
481    JNIEnv* env = JSC::Bindings::getJNIEnv();
482    AutoJObject javaObject = m_javaGlue.object(env);
483    if (!javaObject.get())
484        return;
485    env->CallVoidMethod(javaObject.get(), m_javaGlue.m_viewInvalidateRect, l, r, t, b);
486    checkException(env);
487}
488
489void postInvalidateDelayed(int64_t delay, const WebCore::IntRect& bounds)
490{
491    JNIEnv* env = JSC::Bindings::getJNIEnv();
492    AutoJObject javaObject = m_javaGlue.object(env);
493    if (!javaObject.get())
494        return;
495    env->CallVoidMethod(javaObject.get(), m_javaGlue.m_postInvalidateDelayed,
496        delay, bounds.x(), bounds.y(), bounds.maxX(), bounds.maxY());
497    checkException(env);
498}
499
500#if ENABLE(ANDROID_OVERFLOW_SCROLL)
501static void copyScrollPositionRecursive(const LayerAndroid* from,
502                                        LayerAndroid* root)
503{
504    if (!from || !root)
505        return;
506    for (int i = 0; i < from->countChildren(); i++) {
507        const LayerAndroid* l = from->getChild(i);
508        if (l->contentIsScrollable()) {
509            const SkPoint& pos = l->getPosition();
510            LayerAndroid* match = root->findById(l->uniqueId());
511            if (match && match->contentIsScrollable())
512                match->setPosition(pos.fX, pos.fY);
513        }
514        copyScrollPositionRecursive(l, root);
515    }
516}
517#endif
518
519BaseLayerAndroid* getBaseLayer() const { return m_baseLayer; }
520
521bool setBaseLayer(BaseLayerAndroid* newBaseLayer, bool showVisualIndicator,
522                  bool isPictureAfterFirstLayout)
523{
524    bool queueFull = false;
525#if USE(ACCELERATED_COMPOSITING)
526    if (m_glWebViewState)
527        queueFull = m_glWebViewState->setBaseLayer(newBaseLayer, showVisualIndicator,
528                                                   isPictureAfterFirstLayout);
529#endif
530
531#if ENABLE(ANDROID_OVERFLOW_SCROLL)
532    if (newBaseLayer) {
533        // TODO: the below tree position copies are only necessary in software rendering
534        copyScrollPositionRecursive(m_baseLayer, newBaseLayer);
535    }
536#endif
537    SkSafeUnref(m_baseLayer);
538    m_baseLayer = newBaseLayer;
539
540    return queueFull;
541}
542
543void copyBaseContentToPicture(SkPicture* picture)
544{
545    if (!m_baseLayer)
546        return;
547    LayerContent* content = m_baseLayer->content();
548    content->draw(picture->beginRecording(content->width(), content->height(),
549                                          SkPicture::kUsePathBoundsForClip_RecordingFlag));
550    picture->endRecording();
551}
552
553bool hasContent() {
554    if (!m_baseLayer)
555        return false;
556    return !m_baseLayer->content()->isEmpty();
557}
558
559void setFunctor(Functor* functor) {
560    delete m_glDrawFunctor;
561    m_glDrawFunctor = functor;
562}
563
564Functor* getFunctor() {
565    return m_glDrawFunctor;
566}
567
568void setVisibleRect(SkRect& visibleRect) {
569    m_visibleRect = visibleRect;
570}
571
572void setDrawExtra(DrawExtra *extra, DrawExtras type)
573{
574    if (type == DrawExtrasNone)
575        return;
576    DrawExtra* old = m_extras[type - 1];
577    m_extras[type - 1] = extra;
578    if (old != extra) {
579        delete old;
580    }
581}
582
583void setTextSelection(SelectText *selection) {
584    setDrawExtra(selection, DrawExtrasSelection);
585}
586
587const TransformationMatrix* getLayerTransform(int layerId) {
588    if (layerId != -1 && m_baseLayer) {
589        LayerAndroid* layer = m_baseLayer->findById(layerId);
590        // We need to make sure the drawTransform is up to date as this is
591        // called before a draw() or drawGL()
592        if (layer) {
593            m_baseLayer->updateLayerPositions(m_visibleRect);
594            return layer->drawTransform();
595        }
596    }
597    return 0;
598}
599
600int getHandleLayerId(SelectText::HandleId handleId, SkIPoint& cursorPoint,
601        FloatQuad& textBounds) {
602    SelectText* selectText = static_cast<SelectText*>(getDrawExtra(DrawExtrasSelection));
603    if (!selectText || !m_baseLayer)
604        return -1;
605    int layerId = selectText->caretLayerId(handleId);
606    IntRect cursorRect = selectText->caretRect(handleId);
607    IntRect textRect = selectText->textRect(handleId);
608    // Rects exclude the last pixel on right/bottom. We want only included pixels.
609    cursorPoint.set(cursorRect.x(), cursorRect.maxY() - 1);
610    textRect.setHeight(std::max(1, textRect.height() - 1));
611    textRect.setWidth(std::max(1, textRect.width() - 1));
612    textBounds = FloatQuad(textRect);
613
614    const TransformationMatrix* transform = getLayerTransform(layerId);
615    if (transform) {
616        // We're overloading the concept of Rect to be just the two
617        // points (bottom-left and top-right.
618        cursorPoint = transform->mapPoint(cursorPoint);
619        textBounds = transform->mapQuad(textBounds);
620    }
621    return layerId;
622}
623
624void mapLayerRect(int layerId, SkIRect& rect) {
625    const TransformationMatrix* transform = getLayerTransform(layerId);
626    if (transform)
627        transform->mapRect(rect);
628}
629
630void floatQuadToQuadF(JNIEnv* env, const FloatQuad& nativeTextQuad,
631        jobject textQuad)
632{
633    jobject p1 = env->GetObjectField(textQuad, m_javaGlue.m_quadFP1);
634    jobject p2 = env->GetObjectField(textQuad, m_javaGlue.m_quadFP2);
635    jobject p3 = env->GetObjectField(textQuad, m_javaGlue.m_quadFP3);
636    jobject p4 = env->GetObjectField(textQuad, m_javaGlue.m_quadFP4);
637    GraphicsJNI::point_to_jpointf(nativeTextQuad.p1(), env, p1);
638    GraphicsJNI::point_to_jpointf(nativeTextQuad.p2(), env, p2);
639    GraphicsJNI::point_to_jpointf(nativeTextQuad.p3(), env, p3);
640    GraphicsJNI::point_to_jpointf(nativeTextQuad.p4(), env, p4);
641    env->DeleteLocalRef(p1);
642    env->DeleteLocalRef(p2);
643    env->DeleteLocalRef(p3);
644    env->DeleteLocalRef(p4);
645}
646
647// This is called when WebView switches rendering modes in a more permanent fashion
648// such as when the layer type is set or the view is attached/detached from the window
649int setHwAccelerated(bool hwAccelerated) {
650    if (!m_glWebViewState)
651        return 0;
652    LayerAndroid* root = m_baseLayer;
653    if (root)
654        return root->setHwAccelerated(hwAccelerated);
655    return 0;
656}
657
658    bool m_isDrawingPaused;
659private: // local state for WebView
660    // private to getFrameCache(); other functions operate in a different thread
661    WebViewCore* m_viewImpl;
662    int m_generation; // associate unique ID with sent kit focus to match with ui
663    // Corresponds to the same-named boolean on the java side.
664    bool m_heightCanMeasure;
665    int m_lastDx;
666    SkMSec m_lastDxTime;
667    DrawExtra* m_extras[DRAW_EXTRAS_SIZE];
668    BaseLayerAndroid* m_baseLayer;
669    Functor* m_glDrawFunctor;
670#if USE(ACCELERATED_COMPOSITING)
671    GLWebViewState* m_glWebViewState;
672#endif
673    SkRect m_visibleRect;
674    bool m_isHighEndGfx;
675}; // end of WebView class
676
677
678/**
679 * This class holds a function pointer and parameters for calling drawGL into a specific
680 * viewport. The pointer to the Functor will be put on a framework display list to be called
681 * when the display list is replayed.
682 */
683class GLDrawFunctor : Functor {
684    public:
685    GLDrawFunctor(WebView* _wvInstance,
686            int (WebView::*_funcPtr)(WebCore::IntRect&, WebCore::IntRect*,
687                    WebCore::IntRect&, int, WebCore::IntRect&, jfloat, jint, bool),
688            WebCore::IntRect _viewRect, float _scale, int _extras) {
689        wvInstance = _wvInstance;
690        funcPtr = _funcPtr;
691        viewRect = _viewRect;
692        scale = _scale;
693        extras = _extras;
694    };
695
696    status_t operator()(int messageId, void* data) {
697        TRACE_METHOD();
698
699        if (viewRect.isEmpty()) {
700            // NOOP operation if viewport is empty
701            return 0;
702        }
703
704        WebCore::IntRect inval;
705        int titlebarHeight = webViewRect.height() - viewRect.height();
706
707        uirenderer::DrawGlInfo* info = reinterpret_cast<uirenderer::DrawGlInfo*>(data);
708        WebCore::IntRect clip(info->clipLeft, info->clipTop,
709                              info->clipRight - info->clipLeft,
710                              info->clipBottom - info->clipTop);
711
712        WebCore::IntRect localViewRect = viewRect;
713        if (info->isLayer) {
714            // When webview is on a layer, we need to use the viewport relative
715            // to the FBO, rather than the screen(which will use viewRect).
716            localViewRect.setX(clip.x());
717            localViewRect.setY(info->height - clip.y() - clip.height());
718        }
719        bool shouldDraw = (messageId == uirenderer::DrawGlInfo::kModeDraw);
720        // Send the necessary info to the shader.
721        TilesManager::instance()->shader()->setGLDrawInfo(info);
722
723        int returnFlags = (*wvInstance.*funcPtr)(localViewRect, &inval, webViewRect,
724                titlebarHeight, clip, scale, extras, shouldDraw);
725        if ((returnFlags & uirenderer::DrawGlInfo::kStatusDraw) != 0) {
726            IntRect finalInval;
727            if (inval.isEmpty())
728                finalInval = webViewRect;
729            else {
730                finalInval.setX(webViewRect.x() + inval.x());
731                finalInval.setY(webViewRect.y() + titlebarHeight + inval.y());
732                finalInval.setWidth(inval.width());
733                finalInval.setHeight(inval.height());
734            }
735            info->dirtyLeft = finalInval.x();
736            info->dirtyTop = finalInval.y();
737            info->dirtyRight = finalInval.maxX();
738            info->dirtyBottom = finalInval.maxY();
739        }
740        // return 1 if invalidation needed, 2 to request non-drawing functor callback, 0 otherwise
741        ALOGV("returnFlags are %d, shouldDraw %d", returnFlags, shouldDraw);
742        return returnFlags;
743    }
744    void updateRect(WebCore::IntRect& _viewRect) {
745        viewRect = _viewRect;
746    }
747    void updateViewRect(WebCore::IntRect& _viewRect) {
748        webViewRect = _viewRect;
749    }
750    void updateScale(float _scale) {
751        scale = _scale;
752    }
753    void updateExtras(jint _extras) {
754        extras = _extras;
755    }
756    private:
757    WebView* wvInstance;
758    int (WebView::*funcPtr)(WebCore::IntRect&, WebCore::IntRect*,
759            WebCore::IntRect&, int, WebCore::IntRect&, float, int, bool);
760    WebCore::IntRect viewRect;
761    WebCore::IntRect webViewRect;
762    jfloat scale;
763    jint extras;
764};
765
766/*
767 * Native JNI methods
768 */
769
770static void nativeCreate(JNIEnv *env, jobject obj, int viewImpl,
771                         jstring drawableDir, jboolean isHighEndGfx)
772{
773    WTF::String dir = jstringToWtfString(env, drawableDir);
774    new WebView(env, obj, viewImpl, dir, isHighEndGfx);
775    // NEED THIS OR SOMETHING LIKE IT!
776    //Release(obj);
777}
778
779static WebCore::IntRect jrect_to_webrect(JNIEnv* env, jobject obj)
780{
781    if (obj) {
782        int L, T, R, B;
783        GraphicsJNI::get_jrect(env, obj, &L, &T, &R, &B);
784        return WebCore::IntRect(L, T, R - L, B - T);
785    } else
786        return WebCore::IntRect();
787}
788
789static SkRect jrectf_to_rect(JNIEnv* env, jobject obj)
790{
791    SkRect rect = SkRect::MakeEmpty();
792    if (obj)
793        GraphicsJNI::jrectf_to_rect(env, obj, &rect);
794    return rect;
795}
796
797static void nativeDraw(JNIEnv *env, jobject obj, jobject canv,
798        jobject visible, jint color,
799        jint extras) {
800    SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, canv);
801    WebView* webView = GET_NATIVE_VIEW(env, obj);
802    SkRect visibleRect = jrectf_to_rect(env, visible);
803    webView->setVisibleRect(visibleRect);
804    webView->draw(canvas, color, static_cast<WebView::DrawExtras>(extras));
805}
806
807static jint nativeCreateDrawGLFunction(JNIEnv *env, jobject obj, jint nativeView,
808                                    jobject jrect, jobject jviewrect,
809                                    jobject jvisiblerect,
810                                    jfloat scale, jint extras) {
811    WebCore::IntRect viewRect = jrect_to_webrect(env, jrect);
812    WebView *wvInstance = (WebView*) nativeView;
813    SkRect visibleRect = jrectf_to_rect(env, jvisiblerect);
814    wvInstance->setVisibleRect(visibleRect);
815
816    GLDrawFunctor* functor = (GLDrawFunctor*) wvInstance->getFunctor();
817    if (!functor) {
818        functor = new GLDrawFunctor(wvInstance, &android::WebView::drawGL,
819                                    viewRect, scale, extras);
820        wvInstance->setFunctor((Functor*) functor);
821    } else {
822        functor->updateRect(viewRect);
823        functor->updateScale(scale);
824        functor->updateExtras(extras);
825    }
826
827    WebCore::IntRect webViewRect = jrect_to_webrect(env, jviewrect);
828    functor->updateViewRect(webViewRect);
829
830    return (jint)functor;
831}
832
833static jint nativeGetDrawGLFunction(JNIEnv *env, jobject obj, jint nativeView) {
834    WebView *wvInstance = (WebView*) nativeView;
835    if (!wvInstance)
836        return 0;
837
838    return (jint) wvInstance->getFunctor();
839}
840
841static void nativeUpdateDrawGLFunction(JNIEnv *env, jobject obj, jint nativeView, jobject jrect,
842        jobject jviewrect, jobject jvisiblerect, jfloat scale) {
843    WebView *wvInstance = (WebView*) nativeView;
844    if (wvInstance) {
845        GLDrawFunctor* functor = (GLDrawFunctor*) wvInstance->getFunctor();
846        if (functor) {
847            WebCore::IntRect viewRect = jrect_to_webrect(env, jrect);
848            functor->updateRect(viewRect);
849
850            SkRect visibleRect = jrectf_to_rect(env, jvisiblerect);
851            wvInstance->setVisibleRect(visibleRect);
852
853            WebCore::IntRect webViewRect = jrect_to_webrect(env, jviewrect);
854            functor->updateViewRect(webViewRect);
855
856            functor->updateScale(scale);
857        }
858    }
859}
860
861static bool nativeEvaluateLayersAnimations(JNIEnv *env, jobject obj, jint nativeView)
862{
863    // only call in software rendering, initialize and evaluate animations
864#if USE(ACCELERATED_COMPOSITING)
865    BaseLayerAndroid* baseLayer = ((WebView*)nativeView)->getBaseLayer();
866    if (baseLayer) {
867        baseLayer->initAnimations();
868        return baseLayer->evaluateAnimations();
869    }
870#endif
871    return false;
872}
873
874static bool nativeSetBaseLayer(JNIEnv *env, jobject obj, jint nativeView, jint layer,
875                               jboolean showVisualIndicator,
876                               jboolean isPictureAfterFirstLayout)
877{
878    BaseLayerAndroid* layerImpl = reinterpret_cast<BaseLayerAndroid*>(layer);
879    return ((WebView*)nativeView)->setBaseLayer(layerImpl, showVisualIndicator,
880                                                isPictureAfterFirstLayout);
881}
882
883static BaseLayerAndroid* nativeGetBaseLayer(JNIEnv *env, jobject obj)
884{
885    return GET_NATIVE_VIEW(env, obj)->getBaseLayer();
886}
887
888static void nativeCopyBaseContentToPicture(JNIEnv *env, jobject obj, jobject pict)
889{
890    SkPicture* picture = GraphicsJNI::getNativePicture(env, pict);
891    GET_NATIVE_VIEW(env, obj)->copyBaseContentToPicture(picture);
892}
893
894static bool nativeHasContent(JNIEnv *env, jobject obj)
895{
896    return GET_NATIVE_VIEW(env, obj)->hasContent();
897}
898
899static jobject nativeLayerBounds(JNIEnv* env, jobject obj, jint jlayer)
900{
901    SkRect r;
902#if USE(ACCELERATED_COMPOSITING)
903    LayerAndroid* layer = (LayerAndroid*) jlayer;
904    r = layer->bounds();
905#else
906    r.setEmpty();
907#endif
908    SkIRect irect;
909    r.round(&irect);
910    jclass rectClass = env->FindClass("android/graphics/Rect");
911    jmethodID init = env->GetMethodID(rectClass, "<init>", "(IIII)V");
912    jobject rect = env->NewObject(rectClass, init, irect.fLeft, irect.fTop,
913        irect.fRight, irect.fBottom);
914    env->DeleteLocalRef(rectClass);
915    return rect;
916}
917
918static void nativeSetHeightCanMeasure(JNIEnv *env, jobject obj, bool measure)
919{
920    WebView* view = GET_NATIVE_VIEW(env, obj);
921    ALOG_ASSERT(view, "view not set in nativeSetHeightCanMeasure");
922    view->setHeightCanMeasure(measure);
923}
924
925static void nativeDestroy(JNIEnv *env, jobject obj)
926{
927    WebView* view = GET_NATIVE_VIEW(env, obj);
928    ALOGD("nativeDestroy view: %p", view);
929    ALOG_ASSERT(view, "view not set in nativeDestroy");
930    delete view;
931}
932
933static void nativeStopGL(JNIEnv *env, jobject obj)
934{
935    GET_NATIVE_VIEW(env, obj)->stopGL();
936}
937
938static jobject nativeGetSelection(JNIEnv *env, jobject obj)
939{
940    WebView* view = GET_NATIVE_VIEW(env, obj);
941    ALOG_ASSERT(view, "view not set in %s", __FUNCTION__);
942    String selection = view->getSelection();
943    return wtfStringToJstring(env, selection);
944}
945
946static void nativeDiscardAllTextures(JNIEnv *env, jobject obj)
947{
948    //discard all textures for debugging/test purposes, but not gl backing memory
949    bool allTextures = true, deleteGLTextures = false;
950    TilesManager::instance()->discardTextures(allTextures, deleteGLTextures);
951}
952
953static void nativeTileProfilingStart(JNIEnv *env, jobject obj)
954{
955    TilesManager::instance()->getProfiler()->start();
956}
957
958static float nativeTileProfilingStop(JNIEnv *env, jobject obj)
959{
960    return TilesManager::instance()->getProfiler()->stop();
961}
962
963static void nativeTileProfilingClear(JNIEnv *env, jobject obj)
964{
965    TilesManager::instance()->getProfiler()->clear();
966}
967
968static int nativeTileProfilingNumFrames(JNIEnv *env, jobject obj)
969{
970    return TilesManager::instance()->getProfiler()->numFrames();
971}
972
973static int nativeTileProfilingNumTilesInFrame(JNIEnv *env, jobject obj, int frame)
974{
975    return TilesManager::instance()->getProfiler()->numTilesInFrame(frame);
976}
977
978static int nativeTileProfilingGetInt(JNIEnv *env, jobject obj, int frame, int tile, jstring jkey)
979{
980    WTF::String key = jstringToWtfString(env, jkey);
981    TileProfileRecord* record = TilesManager::instance()->getProfiler()->getTile(frame, tile);
982
983    if (key == "left")
984        return record->left;
985    if (key == "top")
986        return record->top;
987    if (key == "right")
988        return record->right;
989    if (key == "bottom")
990        return record->bottom;
991    if (key == "level")
992        return record->level;
993    if (key == "isReady")
994        return record->isReady ? 1 : 0;
995    return -1;
996}
997
998static float nativeTileProfilingGetFloat(JNIEnv *env, jobject obj, int frame, int tile, jstring jkey)
999{
1000    TileProfileRecord* record = TilesManager::instance()->getProfiler()->getTile(frame, tile);
1001    return record->scale;
1002}
1003
1004#ifdef ANDROID_DUMP_DISPLAY_TREE
1005static void dumpToFile(const char text[], void* file) {
1006    fwrite(text, 1, strlen(text), reinterpret_cast<FILE*>(file));
1007    fwrite("\n", 1, 1, reinterpret_cast<FILE*>(file));
1008}
1009#endif
1010
1011// Return true to view invalidate WebView
1012static bool nativeSetProperty(JNIEnv *env, jobject obj, jstring jkey, jstring jvalue)
1013{
1014    WTF::String key = jstringToWtfString(env, jkey);
1015    WTF::String value = jstringToWtfString(env, jvalue);
1016    if (key == "inverted") {
1017        bool shouldInvert = (value == "true");
1018        TilesManager::instance()->setInvertedScreen(shouldInvert);
1019        return true;
1020    }
1021    else if (key == "inverted_contrast") {
1022        float contrast = value.toFloat();
1023        TilesManager::instance()->setInvertedScreenContrast(contrast);
1024        return true;
1025    }
1026    else if (key == "enable_cpu_upload_path") {
1027        TilesManager::instance()->transferQueue()->setTextureUploadType(
1028            value == "true" ? CpuUpload : GpuUpload);
1029    }
1030    else if (key == "use_minimal_memory") {
1031        TilesManager::instance()->setUseMinimalMemory(value == "true");
1032    }
1033    else if (key == "use_double_buffering") {
1034        TilesManager::instance()->setUseDoubleBuffering(value == "true");
1035    }
1036    else if (key == "tree_updates") {
1037        TilesManager::instance()->clearContentUpdates();
1038    }
1039    return false;
1040}
1041
1042static jstring nativeGetProperty(JNIEnv *env, jobject obj, jstring jkey)
1043{
1044    WTF::String key = jstringToWtfString(env, jkey);
1045    if (key == "tree_updates") {
1046        int updates = TilesManager::instance()->getContentUpdates();
1047        WTF::String wtfUpdates = WTF::String::number(updates);
1048        return wtfStringToJstring(env, wtfUpdates);
1049    }
1050    return 0;
1051}
1052
1053static void nativeOnTrimMemory(JNIEnv *env, jobject obj, jint level)
1054{
1055    if (TilesManager::hardwareAccelerationEnabled()) {
1056        // When we got TRIM_MEMORY_MODERATE or TRIM_MEMORY_COMPLETE, we should
1057        // make sure the transfer queue is empty and then abandon the Surface
1058        // Texture to avoid ANR b/c framework may destroy the EGL context.
1059        // Refer to WindowManagerImpl.java for conditions we followed.
1060        TilesManager* tilesManager = TilesManager::instance();
1061        if ((level >= TRIM_MEMORY_MODERATE
1062            && !tilesManager->highEndGfx())
1063            || level >= TRIM_MEMORY_COMPLETE) {
1064            ALOGD("OnTrimMemory with EGL Context %p", eglGetCurrentContext());
1065            tilesManager->cleanupGLResources();
1066        }
1067
1068        bool freeAllTextures = (level > TRIM_MEMORY_UI_HIDDEN), glTextures = true;
1069        tilesManager->discardTextures(freeAllTextures, glTextures);
1070    }
1071}
1072
1073static void nativeDumpDisplayTree(JNIEnv* env, jobject jwebview, jstring jurl)
1074{
1075#ifdef ANDROID_DUMP_DISPLAY_TREE
1076    WebView* view = GET_NATIVE_VIEW(env, jwebview);
1077    ALOG_ASSERT(view, "view not set in %s", __FUNCTION__);
1078
1079    if (view && view->getWebViewCore()) {
1080        FILE* file = fopen(DISPLAY_TREE_LOG_FILE, "w");
1081        if (file) {
1082            SkFormatDumper dumper(dumpToFile, file);
1083            // dump the URL
1084            if (jurl) {
1085                const char* str = env->GetStringUTFChars(jurl, 0);
1086                SkDebugf("Dumping %s to %s\n", str, DISPLAY_TREE_LOG_FILE);
1087                dumpToFile(str, file);
1088                env->ReleaseStringUTFChars(jurl, str);
1089            }
1090            // now dump the display tree
1091            SkDumpCanvas canvas(&dumper);
1092            // this will playback the picture into the canvas, which will
1093            // spew its contents to the dumper
1094            view->draw(&canvas, 0, WebView::DrawExtrasNone);
1095            // we're done with the file now
1096            fwrite("\n", 1, 1, file);
1097            fclose(file);
1098        }
1099#if USE(ACCELERATED_COMPOSITING)
1100        const LayerAndroid* baseLayer = view->getBaseLayer();
1101        if (baseLayer) {
1102          FILE* file = fopen(LAYERS_TREE_LOG_FILE,"w");
1103          if (file) {
1104              baseLayer->dumpLayers(file, 0);
1105              fclose(file);
1106          }
1107        }
1108#endif
1109    }
1110#endif
1111}
1112
1113static int nativeScrollableLayer(JNIEnv* env, jobject jwebview, jint nativeView,
1114    jint x, jint y, jobject rect, jobject bounds)
1115{
1116    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1117    ALOG_ASSERT(webview, "webview not set in %s", __FUNCTION__);
1118    SkIRect nativeRect, nativeBounds;
1119    int id = webview->scrollableLayer(x, y, &nativeRect, &nativeBounds);
1120    if (rect)
1121        GraphicsJNI::irect_to_jrect(nativeRect, env, rect);
1122    if (bounds)
1123        GraphicsJNI::irect_to_jrect(nativeBounds, env, bounds);
1124    return id;
1125}
1126
1127static bool nativeScrollLayer(JNIEnv* env, jobject obj,
1128    jint nativeView, jint layerId, jint x, jint y)
1129{
1130#if ENABLE(ANDROID_OVERFLOW_SCROLL)
1131    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1132    webview->scrollLayer(layerId, x, y);
1133
1134    //TODO: the below only needed for the SW rendering path
1135    LayerAndroid* baseLayer = webview->getBaseLayer();
1136    if (!baseLayer)
1137        return false;
1138    LayerAndroid* layer = baseLayer->findById(layerId);
1139    if (!layer || !layer->contentIsScrollable())
1140        return false;
1141    return static_cast<ScrollableLayerAndroid*>(layer)->scrollTo(x, y);
1142#endif
1143    return false;
1144}
1145
1146static void nativeSetIsScrolling(JNIEnv* env, jobject jwebview, jboolean isScrolling)
1147{
1148    WebView* view = GET_NATIVE_VIEW(env, jwebview);
1149    ALOG_ASSERT(view, "view not set in %s", __FUNCTION__);
1150    view->setIsScrolling(isScrolling);
1151}
1152
1153static void nativeUseHardwareAccelSkia(JNIEnv*, jobject, jboolean enabled)
1154{
1155    BaseRenderer::setCurrentRendererType(enabled ? BaseRenderer::Ganesh : BaseRenderer::Raster);
1156}
1157
1158static int nativeGetBackgroundColor(JNIEnv* env, jobject obj)
1159{
1160    WebView* view = GET_NATIVE_VIEW(env, obj);
1161    BaseLayerAndroid* baseLayer = view->getBaseLayer();
1162    if (baseLayer) {
1163        WebCore::Color color = baseLayer->getBackgroundColor();
1164        if (color.isValid())
1165            return SkColorSetARGB(color.alpha(), color.red(),
1166                                  color.green(), color.blue());
1167    }
1168    return SK_ColorWHITE;
1169}
1170
1171static void nativeSetPauseDrawing(JNIEnv *env, jobject obj, jint nativeView,
1172                                      jboolean pause)
1173{
1174    ((WebView*)nativeView)->m_isDrawingPaused = pause;
1175}
1176
1177static void nativeSetTextSelection(JNIEnv *env, jobject obj, jint nativeView,
1178                                   jint selectionPtr)
1179{
1180    SelectText* selection = reinterpret_cast<SelectText*>(selectionPtr);
1181    reinterpret_cast<WebView*>(nativeView)->setTextSelection(selection);
1182}
1183
1184static jint nativeGetHandleLayerId(JNIEnv *env, jobject obj, jint nativeView,
1185                                     jint handleIndex, jobject cursorPoint,
1186                                     jobject textQuad)
1187{
1188    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1189    SkIPoint nativePoint;
1190    FloatQuad nativeTextQuad;
1191    int layerId = webview->getHandleLayerId((SelectText::HandleId) handleIndex,
1192            nativePoint, nativeTextQuad);
1193    if (cursorPoint)
1194        GraphicsJNI::ipoint_to_jpoint(nativePoint, env, cursorPoint);
1195    if (textQuad)
1196        webview->floatQuadToQuadF(env, nativeTextQuad, textQuad);
1197    return layerId;
1198}
1199
1200static jboolean nativeIsBaseFirst(JNIEnv *env, jobject obj, jint nativeView)
1201{
1202    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1203    SelectText* select = static_cast<SelectText*>(
1204            webview->getDrawExtra(WebView::DrawExtrasSelection));
1205    return select ? select->isBaseFirst() : false;
1206}
1207
1208static void nativeMapLayerRect(JNIEnv *env, jobject obj, jint nativeView,
1209        jint layerId, jobject rect)
1210{
1211    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1212    SkIRect nativeRect;
1213    GraphicsJNI::jrect_to_irect(env, rect, &nativeRect);
1214    webview->mapLayerRect(layerId, nativeRect);
1215    GraphicsJNI::irect_to_jrect(nativeRect, env, rect);
1216}
1217
1218static jint nativeSetHwAccelerated(JNIEnv *env, jobject obj, jint nativeView,
1219        jboolean hwAccelerated)
1220{
1221    WebView* webview = reinterpret_cast<WebView*>(nativeView);
1222    return webview->setHwAccelerated(hwAccelerated);
1223}
1224
1225/*
1226 * JNI registration
1227 */
1228static JNINativeMethod gJavaWebViewMethods[] = {
1229    { "nativeCreate", "(ILjava/lang/String;Z)V",
1230        (void*) nativeCreate },
1231    { "nativeDestroy", "()V",
1232        (void*) nativeDestroy },
1233    { "nativeDraw", "(Landroid/graphics/Canvas;Landroid/graphics/RectF;II)V",
1234        (void*) nativeDraw },
1235    { "nativeCreateDrawGLFunction", "(ILandroid/graphics/Rect;Landroid/graphics/Rect;Landroid/graphics/RectF;FI)I",
1236        (void*) nativeCreateDrawGLFunction },
1237    { "nativeGetDrawGLFunction", "(I)I",
1238        (void*) nativeGetDrawGLFunction },
1239    { "nativeUpdateDrawGLFunction", "(ILandroid/graphics/Rect;Landroid/graphics/Rect;Landroid/graphics/RectF;F)V",
1240        (void*) nativeUpdateDrawGLFunction },
1241    { "nativeDumpDisplayTree", "(Ljava/lang/String;)V",
1242        (void*) nativeDumpDisplayTree },
1243    { "nativeEvaluateLayersAnimations", "(I)Z",
1244        (void*) nativeEvaluateLayersAnimations },
1245    { "nativeGetSelection", "()Ljava/lang/String;",
1246        (void*) nativeGetSelection },
1247    { "nativeLayerBounds", "(I)Landroid/graphics/Rect;",
1248        (void*) nativeLayerBounds },
1249    { "nativeSetHeightCanMeasure", "(Z)V",
1250        (void*) nativeSetHeightCanMeasure },
1251    { "nativeSetBaseLayer", "(IIZZ)Z",
1252        (void*) nativeSetBaseLayer },
1253    { "nativeGetBaseLayer", "()I",
1254        (void*) nativeGetBaseLayer },
1255    { "nativeCopyBaseContentToPicture", "(Landroid/graphics/Picture;)V",
1256        (void*) nativeCopyBaseContentToPicture },
1257    { "nativeHasContent", "()Z",
1258        (void*) nativeHasContent },
1259    { "nativeDiscardAllTextures", "()V",
1260        (void*) nativeDiscardAllTextures },
1261    { "nativeTileProfilingStart", "()V",
1262        (void*) nativeTileProfilingStart },
1263    { "nativeTileProfilingStop", "()F",
1264        (void*) nativeTileProfilingStop },
1265    { "nativeTileProfilingClear", "()V",
1266        (void*) nativeTileProfilingClear },
1267    { "nativeTileProfilingNumFrames", "()I",
1268        (void*) nativeTileProfilingNumFrames },
1269    { "nativeTileProfilingNumTilesInFrame", "(I)I",
1270        (void*) nativeTileProfilingNumTilesInFrame },
1271    { "nativeTileProfilingGetInt", "(IILjava/lang/String;)I",
1272        (void*) nativeTileProfilingGetInt },
1273    { "nativeTileProfilingGetFloat", "(IILjava/lang/String;)F",
1274        (void*) nativeTileProfilingGetFloat },
1275    { "nativeStopGL", "()V",
1276        (void*) nativeStopGL },
1277    { "nativeScrollableLayer", "(IIILandroid/graphics/Rect;Landroid/graphics/Rect;)I",
1278        (void*) nativeScrollableLayer },
1279    { "nativeScrollLayer", "(IIII)Z",
1280        (void*) nativeScrollLayer },
1281    { "nativeSetIsScrolling", "(Z)V",
1282        (void*) nativeSetIsScrolling },
1283    { "nativeUseHardwareAccelSkia", "(Z)V",
1284        (void*) nativeUseHardwareAccelSkia },
1285    { "nativeGetBackgroundColor", "()I",
1286        (void*) nativeGetBackgroundColor },
1287    { "nativeSetProperty", "(Ljava/lang/String;Ljava/lang/String;)Z",
1288        (void*) nativeSetProperty },
1289    { "nativeGetProperty", "(Ljava/lang/String;)Ljava/lang/String;",
1290        (void*) nativeGetProperty },
1291    { "nativeOnTrimMemory", "(I)V",
1292        (void*) nativeOnTrimMemory },
1293    { "nativeSetPauseDrawing", "(IZ)V",
1294        (void*) nativeSetPauseDrawing },
1295    { "nativeSetTextSelection", "(II)V",
1296        (void*) nativeSetTextSelection },
1297    { "nativeGetHandleLayerId", "(IILandroid/graphics/Point;Landroid/webkit/QuadF;)I",
1298        (void*) nativeGetHandleLayerId },
1299    { "nativeIsBaseFirst", "(I)Z",
1300        (void*) nativeIsBaseFirst },
1301    { "nativeMapLayerRect", "(IILandroid/graphics/Rect;)V",
1302        (void*) nativeMapLayerRect },
1303    { "nativeSetHwAccelerated", "(IZ)I",
1304        (void*) nativeSetHwAccelerated },
1305};
1306
1307int registerWebView(JNIEnv* env)
1308{
1309    jclass clazz = env->FindClass("android/webkit/WebViewClassic");
1310    ALOG_ASSERT(clazz, "Unable to find class android/webkit/WebViewClassic");
1311    gWebViewField = env->GetFieldID(clazz, "mNativeClass", "I");
1312    ALOG_ASSERT(gWebViewField, "Unable to find android/webkit/WebViewClassic.mNativeClass");
1313    env->DeleteLocalRef(clazz);
1314
1315    return jniRegisterNativeMethods(env, "android/webkit/WebViewClassic", gJavaWebViewMethods, NELEM(gJavaWebViewMethods));
1316}
1317
1318} // namespace android
1319