Add fullscreen support to Pepper.

chrome/renderer/render_widget_fullscreen_pepper.cc

+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/renderer/render_widget_fullscreen_pepper.h"
+
+#include "chrome/common/render_messages.h"
+#include "chrome/renderer/render_thread.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebCursorInfo.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebSize.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebWidget.h"
+#include "webkit/glue/plugins/pepper_fullscreen_container.h"
+#include "webkit/glue/plugins/pepper_plugin_instance.h"
+
+using WebKit::WebCanvas;
+using WebKit::WebCompositionUnderline;
+using WebKit::WebCursorInfo;
+using WebKit::WebInputEvent;
+using WebKit::WebRect;
+using WebKit::WebSize;
+using WebKit::WebString;
+using WebKit::WebTextDirection;
+using WebKit::WebTextInputType;
+using WebKit::WebVector;
+using WebKit::WebWidget;
+
+namespace {
+
+// WebWidget that simply wraps the pepper plugin.
+class PepperWidget : public WebWidget {
+ public:
+  PepperWidget(pepper::PluginInstance* plugin,
+               RenderWidgetFullscreenPepper* widget)
+      : plugin_(plugin),
+        widget_(widget),
+        cursor_(WebCursorInfo::TypePointer) {
+  }
+
+  // WebWidget API
+  virtual void close() {
+    delete this;
+  }
+
+  virtual WebSize size() {
+    return size_;
+  }
+
+  virtual void resize(const WebSize& size) {
+    size_ = size;
+    WebRect plugin_rect(0, 0, size_.width, size_.height);
+    // TODO(piman): transparently scale the plugin instead of resizing it.
+    plugin_->ViewChanged(plugin_rect, plugin_rect);
+    widget_->GenerateFullRepaint();
+  }
+
+  virtual void layout() {
+  }
+
+  virtual void paint(WebCanvas* canvas, const WebRect& rect) {
+    if (!plugin_)
+      return;
+    WebRect plugin_rect(0, 0, size_.width, size_.height);
+    plugin_->Paint(canvas, plugin_rect, rect);
+  }
+
+  virtual void composite(bool finish) {
+    NOTIMPLEMENTED();
+  }
+
+  virtual void themeChanged() {
+    NOTIMPLEMENTED();
+  }
+
+  virtual bool handleInputEvent(const WebInputEvent& event) {
+    if (!plugin_)
+      return false;
+    return plugin_->HandleInputEvent(event, &cursor_);
+  }
+
+  virtual void mouseCaptureLost() {
+    NOTIMPLEMENTED();
+  }
+
+  virtual void setFocus(bool focus) {
+    NOTIMPLEMENTED();
+  }
+
+  virtual bool setComposition(
+      const WebString& text,
+      const WebVector<WebCompositionUnderline>& underlines,
+      int selectionStart,
+      int selectionEnd) {
+    NOTIMPLEMENTED();
+    return false;
+  }
+
+  virtual bool confirmComposition() {
+    NOTIMPLEMENTED();
+    return false;
+  }
+
+  virtual WebTextInputType textInputType() {
+    NOTIMPLEMENTED();
+    return WebKit::WebTextInputTypeNone;
+  }
+
+  virtual WebRect caretOrSelectionBounds() {
+    NOTIMPLEMENTED();
+    return WebRect();
+  }
+
+  virtual void setTextDirection(WebTextDirection) {
+    NOTIMPLEMENTED();
+  }
+
+  virtual bool isAcceleratedCompositingActive() const {
+    // TODO(piman): see if supporting accelerated compositing makes sense.
+    return false;
+  }
+
+ private:
+  pepper::PluginInstance* plugin_;
+  RenderWidgetFullscreenPepper* widget_;
+  WebSize size_;
+  WebCursorInfo cursor_;
+
+  DISALLOW_COPY_AND_ASSIGN(PepperWidget);
+};
+
+
+// A FullscreenContainer that forwards the API calls to the
+// RenderWidgetFullscreenPepper.
+class WidgetFullscreenContainer : public pepper::FullscreenContainer {
+ public:
+  explicit WidgetFullscreenContainer(RenderWidgetFullscreenPepper* widget)
+      : widget_(widget) {
+  }
+  virtual ~WidgetFullscreenContainer() { }
+
+  virtual void Invalidate() {
+    widget_->GenerateFullRepaint();
+  }
+
+  virtual void InvalidateRect(const WebKit::WebRect& rect) {
+    widget_->didInvalidateRect(rect);
+  }
+
+  virtual void Destroy() {
+    widget_->SendClose();
+  }
+
+ private:
+  RenderWidgetFullscreenPepper* widget_;
+
+  DISALLOW_COPY_AND_ASSIGN(WidgetFullscreenContainer);
+};
+
+}  // anonymous namespace
+
+// static
+RenderWidgetFullscreenPepper* RenderWidgetFullscreenPepper::Create(
+    int32 opener_id, RenderThreadBase* render_thread,
+    pepper::PluginInstance* plugin) {
+  DCHECK_NE(MSG_ROUTING_NONE, opener_id);
+  scoped_refptr<RenderWidgetFullscreenPepper> widget =
+      new RenderWidgetFullscreenPepper(render_thread, plugin);
+  widget->Init(opener_id);
+  return widget.release();
+}
+
+RenderWidgetFullscreenPepper::RenderWidgetFullscreenPepper(
+    RenderThreadBase* render_thread, pepper::PluginInstance* plugin)
+    : RenderWidgetFullscreen(render_thread, WebKit::WebPopupTypeSelect),
+      plugin_(plugin),
+      container_(new WidgetFullscreenContainer(this)) {
+}
+
+RenderWidgetFullscreenPepper::~RenderWidgetFullscreenPepper() {
+}
+
+WebWidget* RenderWidgetFullscreenPepper::CreateWebWidget() {
+  return new PepperWidget(plugin_, this);
+}
+
+void RenderWidgetFullscreenPepper::Close() {
+  // If the fullscreen window is closed (e.g. user pressed escape), reset to
+  // normal mode.
+  if (plugin_)
+    plugin_->SetFullscreen(false);
+}
+
+void RenderWidgetFullscreenPepper::DidInitiatePaint() {
+  if (plugin_)
+    plugin_->ViewInitiatedPaint();
+}
+
+void RenderWidgetFullscreenPepper::DidFlushPaint() {
+  if (plugin_)
+    plugin_->ViewFlushedPaint();
+}
+
+void RenderWidgetFullscreenPepper::SendClose() {
+  // This function is called by the plugin instance as it's going away, so reset
+  // plugin_ to NULL to avoid calling into a dangling pointer e.g. on Close().
+  plugin_ = NULL;
+  Send(new ViewHostMsg_Close(routing_id_));
+}
+
+void RenderWidgetFullscreenPepper::GenerateFullRepaint() {
+  didInvalidateRect(gfx::Rect(size_.width(), size_.height()));
+}