Implement input type=color UI

chrome/browser/color_select_observer.cc

+// Copyright (c) 2011 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/browser/color_select_observer.h"
+
+#include "chrome/browser/platform_util.h"
+#include "content/browser/renderer_host/render_view_host.h"
+#include "content/browser/renderer_host/render_widget_host_view.h"
+#include "content/browser/tab_contents/tab_contents.h"
+#include "content/common/view_messages.h"
+
+#if defined(ENABLE_INPUT_COLOR)
+
+bool ColorSelectObserver::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(ColorSelectObserver, message)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_OpenColorChooser, OnOpenColorChooser)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_DetachColorChooser, OnDetachColorChooser)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_SetSelectedColorInColorChooser,
+                        OnSetSelectedColorInColorChooser)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+
+  return handled;
+}
+
+ColorSelectObserver::ColorSelectObserver(content::WebContents* web_contents)
+    : WebContentsObserver(web_contents) {
+}
+
+ColorSelectObserver::~ColorSelectObserver() {
+}
+
+void ColorSelectObserver::OnOpenColorChooser(
+    const ViewHostMsg_SetSelectedColorInColorChooser_Params& params) {
+  render_view_host_ = web_contents()->GetRenderViewHost();
+#if defined(OS_WIN)
+  if (color_chooser_dialog_)
+    return;
+  gfx::NativeWindow owning_window =
+      platform_util::GetTopLevel(render_view_host_->view()->GetNativeView());
+  color_chooser_dialog_ = ColorChooserDialog::Create(this);
+  color_chooser_dialog_->SelectColor(params.color, owning_window);
+#else
+  ColorChooser::GetInstance()->open(this, params.color);
+#endif
+}
+
+void ColorSelectObserver::OnDetachColorChooser() {
+#if !defined(OS_WIN)
+  if (render_view_host_ != web_contents()->GetRenderViewHost())
+    return;
+  ColorChooser::GetInstance()->detach(this);
+#endif
+}
+
+void ColorSelectObserver::OnSetSelectedColorInColorChooser(
+    const ViewHostMsg_SetSelectedColorInColorChooser_Params& params) {
+#if !defined(OS_WIN)
+  ColorChooser::GetInstance()->setSelectedColor(params.color);
+#endif
+}
+
+void ColorSelectObserver::DidChooseColor(WebKit::WebColor color) {
+  render_view_host_->DidChooseColorInColorChooser(color);
+}
+
+void ColorSelectObserver::DidDetach() {
+  render_view_host_->DidDetachColorChooser();
+#if defined(OS_WIN)
+  color_chooser_dialog_ = 0;
+#endif
+}
+
+#endif // defined(ENABLE_INPUT_COLOR)