Reland: Implement Aura side of unified touch text selection for contents

content/browser/web_contents/touch_selection_controller_aura_client_impl.cc

+// Copyright 2015 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/browser/web_contents/touch_selection_controller_aura_client_impl.h"
+
+#include "content/browser/renderer_host/render_widget_host_impl.h"
+#include "content/browser/renderer_host/render_widget_host_view_aura.h"
+#include "content/browser/web_contents/web_contents_impl.h"
+#include "content/common/view_messages.h"
+#include "content/public/browser/render_view_host.h"
+#include "ui/aura/window.h"
+#include "ui/base/clipboard/clipboard.h"
+#include "ui/gfx/geometry/point_conversions.h"
+#include "ui/strings/grit/ui_strings.h"
+
+namespace content {
+
+TouchSelectionControllerAuraClientImpl::TouchSelectionControllerAuraClientImpl(
+    RenderWidgetHostViewAura* rwhva) : rwhva_(rwhva) {
+}
+
+TouchSelectionControllerAuraClientImpl::
+    ~TouchSelectionControllerAuraClientImpl() {
+}
+
+void TouchSelectionControllerAuraClientImpl::MoveCaret(
+    const gfx::PointF& position) {
+  RenderWidgetHostImpl* host =
+      RenderWidgetHostImpl::From(rwhva_->GetRenderWidgetHost());
+  host->MoveCaret(gfx::ToRoundedPoint(position));
+}
+
+void TouchSelectionControllerAuraClientImpl::MoveRangeSelectionExtent(
+    const gfx::PointF& extent) {
+  RenderViewHost* rvh = RenderViewHost::From(rwhva_->GetRenderWidgetHost());
+  WebContentsImpl* wc =
+      static_cast<WebContentsImpl*>(WebContents::FromRenderViewHost(rvh));
+  wc->MoveRangeSelectionExtent(gfx::ToRoundedPoint(extent));
+}
+
+void TouchSelectionControllerAuraClientImpl::SelectBetweenCoordinates(
+    const gfx::PointF& base,
+    const gfx::PointF& extent) {
+  RenderViewHost* rvh = RenderViewHost::From(rwhva_->GetRenderWidgetHost());
+  WebContentsImpl* wc =
+      static_cast<WebContentsImpl*>(WebContents::FromRenderViewHost(rvh));
+  wc->SelectRange(gfx::ToRoundedPoint(base), gfx::ToRoundedPoint(extent));
+}
+
+aura::Window* TouchSelectionControllerAuraClientImpl::GetParentWindow() const {
+  return rwhva_->GetNativeView();
+}
+
+gfx::Rect TouchSelectionControllerAuraClientImpl::GetClientBounds() const {
+  return gfx::Rect(rwhva_->GetNativeView()->bounds().size());
+}
+
+bool TouchSelectionControllerAuraClientImpl::IsCommandIdEnabled(
+    int command_id) const {
+  bool editable = rwhva_->GetTextInputType() != ui::TEXT_INPUT_TYPE_NONE;
+  bool readable = rwhva_->GetTextInputType() != ui::TEXT_INPUT_TYPE_PASSWORD;
+  gfx::Range selection_range;
+  rwhva_->GetSelectionRange(&selection_range);
+  bool has_selection = !selection_range.is_empty();
+  switch (command_id) {
+    case IDS_APP_CUT:
+      return editable && readable && has_selection;
+    case IDS_APP_COPY:
+      return readable && has_selection;
+    case IDS_APP_PASTE: {
+      base::string16 result;
+      ui::Clipboard::GetForCurrentThread()->ReadText(
+          ui::CLIPBOARD_TYPE_COPY_PASTE, &result);
+      return editable && !result.empty();
+    }
+    case IDS_APP_DELETE:
+      return editable && has_selection;
+    case IDS_APP_SELECT_ALL:
+      return true;
+    default:
+      return false;
+  }
+}
+
+void TouchSelectionControllerAuraClientImpl::ExecuteCommand(int command_id,
+                                                            int event_flags) {
+  RenderViewHost* rvh = RenderViewHost::From(rwhva_->GetRenderWidgetHost());
+  WebContents* wc = WebContents::FromRenderViewHost(rvh);
+  switch (command_id) {
+    case IDS_APP_CUT:
+      wc->Cut();
+      break;
+    case IDS_APP_COPY:
+      wc->Copy();
+      break;
+    case IDS_APP_PASTE:
+      wc->Paste();
+      break;
+    case IDS_APP_DELETE:
+      wc->Delete();
+      break;
+    case IDS_APP_SELECT_ALL:
+      wc->SelectAll();
+      break;
+    default:
+      NOTREACHED();
+      break;
+  }
+}
+
+void TouchSelectionControllerAuraClientImpl::OpenContextMenu(
+    const gfx::PointF& point) {
+  RenderWidgetHostImpl* host =
+      RenderWidgetHostImpl::From(rwhva_->GetRenderWidgetHost());
+  host->Send(new ViewMsg_ShowContextMenu(host->GetRoutingID(),
+                                         ui::MENU_SOURCE_TOUCH_EDIT_MENU,
+                                         gfx::ToRoundedPoint(point)));
+}
+
+}  // namespace content