1/*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "web/WebPopupMenuImpl.h"
33
34#include "core/frame/FrameView.h"
35#include "platform/Cursor.h"
36#include "platform/NotImplemented.h"
37#include "platform/PlatformGestureEvent.h"
38#include "platform/PlatformKeyboardEvent.h"
39#include "platform/PlatformMouseEvent.h"
40#include "platform/PlatformWheelEvent.h"
41#include "platform/geometry/IntRect.h"
42#include "platform/graphics/GraphicsContext.h"
43#include "platform/graphics/skia/SkiaUtils.h"
44#include "public/platform/Platform.h"
45#include "public/platform/WebCompositorSupport.h"
46#include "public/platform/WebContentLayer.h"
47#include "public/platform/WebFloatRect.h"
48#include "public/platform/WebLayerTreeView.h"
49#include "public/platform/WebRect.h"
50#include "public/web/WebInputEvent.h"
51#include "public/web/WebRange.h"
52#include "public/web/WebViewClient.h"
53#include "public/web/WebWidgetClient.h"
54#include "web/PopupContainer.h"
55#include "web/PopupMenuChromium.h"
56#include "web/WebInputEventConversion.h"
57#include <skia/ext/platform_canvas.h>
58
59namespace blink {
60
61// WebPopupMenu ---------------------------------------------------------------
62
63WebPopupMenu* WebPopupMenu::create(WebWidgetClient* client)
64{
65    // Pass the WebPopupMenuImpl's self-reference to the caller.
66    return adoptRef(new WebPopupMenuImpl(client)).leakRef();
67}
68
69// WebWidget ------------------------------------------------------------------
70
71WebPopupMenuImpl::WebPopupMenuImpl(WebWidgetClient* client)
72    : m_client(client)
73    , m_layerTreeView(0)
74    // Set to impossible point so we always get the first mouse position.
75    , m_lastMousePosition(WebPoint(-1, -1))
76    , m_widget(0)
77{
78}
79
80WebPopupMenuImpl::~WebPopupMenuImpl()
81{
82    if (m_widget)
83        m_widget->setClient(0);
84}
85
86void WebPopupMenuImpl::willCloseLayerTreeView()
87{
88    m_layerTreeView = 0;
89}
90
91void WebPopupMenuImpl::initialize(PopupContainer* widget, const WebRect& bounds)
92{
93    m_widget = widget;
94    m_widget->setClient(this);
95
96    if (!m_client)
97        return;
98    m_client->setWindowRect(bounds);
99    m_client->show(WebNavigationPolicy()); // Policy is ignored.
100
101    m_client->initializeLayerTreeView();
102    m_layerTreeView = m_client->layerTreeView();
103    if (m_layerTreeView) {
104        m_layerTreeView->setVisible(true);
105        m_layerTreeView->setDeviceScaleFactor(m_client->deviceScaleFactor());
106        m_rootLayer = adoptPtr(Platform::current()->compositorSupport()->createContentLayer(this));
107        m_rootLayer->layer()->setBounds(m_size);
108        m_layerTreeView->setRootLayer(*m_rootLayer->layer());
109    }
110}
111
112void WebPopupMenuImpl::handleMouseMove(const WebMouseEvent& event)
113{
114    // Don't send mouse move messages if the mouse hasn't moved.
115    if (event.x != m_lastMousePosition.x || event.y != m_lastMousePosition.y) {
116        m_lastMousePosition = WebPoint(event.x, event.y);
117        m_widget->handleMouseMoveEvent(PlatformMouseEventBuilder(m_widget, event));
118
119        // We cannot call setToolTipText() in PopupContainer, because PopupContainer is in WebCore, and we cannot refer to WebKit from Webcore.
120        PopupContainer* container = static_cast<PopupContainer*>(m_widget);
121        client()->setToolTipText(container->getSelectedItemToolTip(), toWebTextDirection(container->menuStyle().textDirection()));
122    }
123}
124
125void WebPopupMenuImpl::handleMouseLeave(const WebMouseEvent& event)
126{
127    m_widget->handleMouseMoveEvent(PlatformMouseEventBuilder(m_widget, event));
128}
129
130void WebPopupMenuImpl::handleMouseDown(const WebMouseEvent& event)
131{
132    m_widget->handleMouseDownEvent(PlatformMouseEventBuilder(m_widget, event));
133}
134
135void WebPopupMenuImpl::handleMouseUp(const WebMouseEvent& event)
136{
137    mouseCaptureLost();
138    m_widget->handleMouseReleaseEvent(PlatformMouseEventBuilder(m_widget, event));
139}
140
141void WebPopupMenuImpl::handleMouseWheel(const WebMouseWheelEvent& event)
142{
143    m_widget->handleWheelEvent(PlatformWheelEventBuilder(m_widget, event));
144}
145
146bool WebPopupMenuImpl::handleGestureEvent(const WebGestureEvent& event)
147{
148    return m_widget->handleGestureEvent(PlatformGestureEventBuilder(m_widget, event));
149}
150
151bool WebPopupMenuImpl::handleTouchEvent(const WebTouchEvent& event)
152{
153
154    PlatformTouchEventBuilder touchEventBuilder(m_widget, event);
155    bool defaultPrevented(m_widget->handleTouchEvent(touchEventBuilder));
156    return defaultPrevented;
157}
158
159bool WebPopupMenuImpl::handleKeyEvent(const WebKeyboardEvent& event)
160{
161    return m_widget->handleKeyEvent(PlatformKeyboardEventBuilder(event));
162}
163
164// WebWidget -------------------------------------------------------------------
165
166void WebPopupMenuImpl::close()
167{
168    if (m_widget)
169        m_widget->hide();
170
171    m_client = 0;
172
173    deref(); // Balances ref() from WebPopupMenu::create.
174}
175
176void WebPopupMenuImpl::willStartLiveResize()
177{
178}
179
180void WebPopupMenuImpl::resize(const WebSize& newSize)
181{
182    if (m_size == newSize)
183        return;
184    m_size = newSize;
185
186    if (m_widget) {
187        IntRect newGeometry(0, 0, m_size.width, m_size.height);
188        m_widget->setFrameRect(newGeometry);
189    }
190
191    if (m_client) {
192        WebRect damagedRect(0, 0, m_size.width, m_size.height);
193        m_client->didInvalidateRect(damagedRect);
194    }
195
196    if (m_rootLayer)
197        m_rootLayer->layer()->setBounds(newSize);
198}
199
200void WebPopupMenuImpl::willEndLiveResize()
201{
202}
203
204void WebPopupMenuImpl::beginFrame(const WebBeginFrameArgs&)
205{
206}
207
208void WebPopupMenuImpl::layout()
209{
210}
211
212void WebPopupMenuImpl::paintContents(WebCanvas* canvas, const WebRect& rect, bool, WebContentLayerClient::GraphicsContextStatus contextStatus)
213{
214    if (!m_widget)
215        return;
216
217    if (!rect.isEmpty()) {
218        GraphicsContext context(canvas,
219            contextStatus == WebContentLayerClient::GraphicsContextEnabled ? GraphicsContext::NothingDisabled : GraphicsContext::FullyDisabled);
220        m_widget->paint(&context, rect);
221    }
222}
223
224void WebPopupMenuImpl::paint(WebCanvas* canvas, const WebRect& rect)
225{
226    if (!m_widget)
227        return;
228
229    if (!rect.isEmpty()) {
230        GraphicsContext context(canvas);
231        context.applyDeviceScaleFactor(m_client->deviceScaleFactor());
232        m_widget->paint(&context, rect);
233    }
234}
235
236void WebPopupMenuImpl::themeChanged()
237{
238    notImplemented();
239}
240
241bool WebPopupMenuImpl::handleInputEvent(const WebInputEvent& inputEvent)
242{
243    if (!m_widget)
244        return false;
245
246    // FIXME: WebKit seems to always return false on mouse events methods. For
247    // now we'll assume it has processed them (as we are only interested in
248    // whether keyboard events are processed).
249    switch (inputEvent.type) {
250    case WebInputEvent::MouseMove:
251        handleMouseMove(static_cast<const WebMouseEvent&>(inputEvent));
252        return true;
253
254    case WebInputEvent::MouseLeave:
255        handleMouseLeave(static_cast<const WebMouseEvent&>(inputEvent));
256        return true;
257
258    case WebInputEvent::MouseWheel:
259        handleMouseWheel(static_cast<const WebMouseWheelEvent&>(inputEvent));
260        return true;
261
262    case WebInputEvent::MouseDown:
263        handleMouseDown(static_cast<const WebMouseEvent&>(inputEvent));
264        return true;
265
266    case WebInputEvent::MouseUp:
267        handleMouseUp(static_cast<const WebMouseEvent&>(inputEvent));
268        return true;
269
270    // In Windows, RawKeyDown only has information about the physical key, but
271    // for "selection", we need the information about the character the key
272    // translated into. For English, the physical key value and the character
273    // value are the same, hence, "selection" works for English. But for other
274    // languages, such as Hebrew, the character value is different from the
275    // physical key value. Thus, without accepting Char event type which
276    // contains the key's character value, the "selection" won't work for
277    // non-English languages, such as Hebrew.
278    case WebInputEvent::RawKeyDown:
279    case WebInputEvent::KeyDown:
280    case WebInputEvent::KeyUp:
281    case WebInputEvent::Char:
282        return handleKeyEvent(static_cast<const WebKeyboardEvent&>(inputEvent));
283
284    case WebInputEvent::TouchStart:
285    case WebInputEvent::TouchMove:
286    case WebInputEvent::TouchEnd:
287    case WebInputEvent::TouchCancel:
288        return handleTouchEvent(static_cast<const WebTouchEvent&>(inputEvent));
289
290    case WebInputEvent::GestureScrollBegin:
291    case WebInputEvent::GestureScrollEnd:
292    case WebInputEvent::GestureScrollUpdate:
293    case WebInputEvent::GestureScrollUpdateWithoutPropagation:
294    case WebInputEvent::GestureFlingStart:
295    case WebInputEvent::GestureFlingCancel:
296    case WebInputEvent::GestureTap:
297    case WebInputEvent::GestureTapUnconfirmed:
298    case WebInputEvent::GestureTapDown:
299    case WebInputEvent::GestureShowPress:
300    case WebInputEvent::GestureTapCancel:
301    case WebInputEvent::GestureDoubleTap:
302    case WebInputEvent::GestureTwoFingerTap:
303    case WebInputEvent::GestureLongPress:
304    case WebInputEvent::GestureLongTap:
305    case WebInputEvent::GesturePinchBegin:
306    case WebInputEvent::GesturePinchEnd:
307    case WebInputEvent::GesturePinchUpdate:
308        return handleGestureEvent(static_cast<const WebGestureEvent&>(inputEvent));
309
310    case WebInputEvent::Undefined:
311    case WebInputEvent::MouseEnter:
312    case WebInputEvent::ContextMenu:
313        return false;
314    }
315    return false;
316}
317
318void WebPopupMenuImpl::mouseCaptureLost()
319{
320}
321
322void WebPopupMenuImpl::setFocus(bool)
323{
324}
325
326bool WebPopupMenuImpl::setComposition(const WebString&, const WebVector<WebCompositionUnderline>&, int, int)
327{
328    return false;
329}
330
331bool WebPopupMenuImpl::confirmComposition()
332{
333    return false;
334}
335
336bool WebPopupMenuImpl::confirmComposition(ConfirmCompositionBehavior)
337{
338    return false;
339}
340
341bool WebPopupMenuImpl::confirmComposition(const WebString&)
342{
343    return false;
344}
345
346bool WebPopupMenuImpl::compositionRange(size_t* location, size_t* length)
347{
348    *location = 0;
349    *length = 0;
350    return false;
351}
352
353bool WebPopupMenuImpl::caretOrSelectionRange(size_t* location, size_t* length)
354{
355    *location = 0;
356    *length = 0;
357    return false;
358}
359
360void WebPopupMenuImpl::setTextDirection(WebTextDirection)
361{
362}
363
364
365//-----------------------------------------------------------------------------
366// HostWindow
367
368void WebPopupMenuImpl::invalidateContentsAndRootView(const IntRect& paintRect)
369{
370    if (paintRect.isEmpty())
371        return;
372    if (m_client)
373        m_client->didInvalidateRect(paintRect);
374    if (m_rootLayer)
375        m_rootLayer->layer()->invalidateRect(FloatRect(paintRect));
376}
377
378void WebPopupMenuImpl::invalidateContentsForSlowScroll(const IntRect& updateRect)
379{
380    invalidateContentsAndRootView(updateRect);
381}
382
383void WebPopupMenuImpl::scheduleAnimation()
384{
385}
386
387IntRect WebPopupMenuImpl::rootViewToScreen(const IntRect& rect) const
388{
389    notImplemented();
390    return IntRect();
391}
392
393WebScreenInfo WebPopupMenuImpl::screenInfo() const
394{
395    return WebScreenInfo();
396}
397
398void WebPopupMenuImpl::popupClosed(PopupContainer* widget)
399{
400    ASSERT(widget == m_widget);
401    if (m_widget) {
402        m_widget->setClient(0);
403        m_widget = 0;
404    }
405    if (m_client)
406        m_client->closeWidgetSoon();
407}
408
409} // namespace blink
410