Implement input type=color UI

content/renderer/renderer_webcolorchooser_impl.cc

+// Copyright (c) 2012 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 "content/renderer/renderer_webcolorchooser_impl.h"
+
+#include "content/common/view_messages.h"
+#include "content/renderer/render_view_impl.h"
+
+static int GenerateColorChooserIdentifier() {
+  static int next = 0;
+  return ++next;
+}
+
+RendererWebColorChooserImpl::RendererWebColorChooserImpl(
+    RenderViewImpl* render_view,
+    WebKit::WebColorChooserClient* client)
+    : content::RenderViewObserver(render_view),
+      identifier_(GenerateColorChooserIdentifier()),
+      client_(client) {
+}
+
+RendererWebColorChooserImpl::~RendererWebColorChooserImpl() {
+}
+
+bool RendererWebColorChooserImpl::OnMessageReceived(
+    const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(RendererWebColorChooserImpl, message)
+    IPC_MESSAGE_HANDLER(ViewMsg_DidChooseColorResponse,
+                        OnDidChooseColorResponse)
+    IPC_MESSAGE_HANDLER(ViewMsg_DidEndColorChooser,
+                        OnDidEndColorChooser)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void RendererWebColorChooserImpl::FrameWillClose(WebKit::WebFrame* frame) {
+  endChooser();
+  client_->didEndChooser();
+}
+
+void RendererWebColorChooserImpl::setSelectedColor(WebKit::WebColor color) {
+  Send(new ViewHostMsg_SetSelectedColorInColorChooser(routing_id(), identifier_,
+      static_cast<SkColor>(color)));
+}
+
+void RendererWebColorChooserImpl::endChooser() {
+  Send(new ViewHostMsg_EndColorChooser(routing_id(), identifier_));
+}
+
+void RendererWebColorChooserImpl::Open(SkColor initial_color) {
+  Send(new ViewHostMsg_OpenColorChooser(routing_id(), identifier_,
+                                        initial_color));
+}
+
+void RendererWebColorChooserImpl::OnDidChooseColorResponse(
+    int color_chooser_id,
+    const SkColor& color) {
+  DCHECK(identifier_ == color_chooser_id);
+
+  client_->didChooseColor(static_cast<WebKit::WebColor>(color));
+}
+
+void RendererWebColorChooserImpl::OnDidEndColorChooser(int color_chooser_id) {
+  if (identifier_ != color_chooser_id)
+    return;
+  client_->didEndChooser();
+}