Browser Side Text Input State Tracking for OOPIF.

content/browser/renderer_host/render_widget_host_view_mac.mm

 // 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/browser/renderer_host/render_widget_host_view_mac.h"
 
 #import <objc/runtime.h>
 #include <OpenGL/gl.h>
 #include <QuartzCore/QuartzCore.h>
 #include <stdint.h>
@@ skipping 495 matching lines @@
     blink::WebScreenInfo* results) {
   *results = GetWebScreenInfo(NULL);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewMac, public:
 
 RenderWidgetHostViewMac::RenderWidgetHostViewMac(RenderWidgetHost* widget,
                                                  bool is_guest_view_hack)
     : render_widget_host_(RenderWidgetHostImpl::From(widget)),
-      text_input_type_(ui::TEXT_INPUT_TYPE_NONE),
-      can_compose_inline_(true),
       browser_compositor_state_(BrowserCompositorDestroyed),
       browser_compositor_placeholder_(new BrowserCompositorMacPlaceholder),
       page_at_minimum_scale_(true),
       is_loading_(false),
       allow_pause_for_resize_or_repaint_(true),
       is_guest_view_hack_(is_guest_view_hack),
       fullscreen_parent_host_view_(NULL),
       weak_factory_(this) {
   // |cocoa_view_| owns us and we will be deleted when |cocoa_view_|
   // goes away.  Since we autorelease it, our caller must put
@@ skipping 480 matching lines @@
   WebCursor web_cursor = cursor;
   [cocoa_view_ updateCursor:web_cursor.GetNativeCursor()];
 }
 
 void RenderWidgetHostViewMac::SetIsLoading(bool is_loading) {
   is_loading_ = is_loading;
   // If we ever decide to show the waiting cursor while the page is loading
   // like Chrome does on Windows, call |UpdateCursor()| here.
 }
 
-void RenderWidgetHostViewMac::TextInputStateChanged(
-const ViewHostMsg_TextInputState_Params& params) {
-  if (text_input_type_ != params.type
-      || can_compose_inline_ != params.can_compose_inline) {
-    text_input_type_ = params.type;
-    can_compose_inline_ = params.can_compose_inline;
-    if (HasFocus()) {
-      SetTextInputActive(true);
+void RenderWidgetHostViewMac::UpdateTextInputState() {
+  RenderWidgetHostViewBase* focused_view = GetFocusedView();
+  if (!focused_view->ShouldProcessTextInputState())
+    return;
 
-      // Let AppKit cache the new input context to make IMEs happy.
-      // See http://crbug.com/73039.
-      [NSApp updateWindows];
+  cached_text_input_state_ = focused_view->text_input_state();
+
+  if (HasFocus()) {
+    SetTextInputActive(true);
+
+    // Let AppKit cache the new input context to make IMEs happy.
+    // See http://crbug.com/73039.
+    [NSApp updateWindows];
 
 #ifndef __LP64__
-      UseInputWindow(TSMGetActiveDocument(), !can_compose_inline_);
+    UseInputWindow(TSMGetActiveDocument(),
+                   focused_view->text_input_state() _->can_compose_inline_);
 #endif
-    }
   }
 }
 
 void RenderWidgetHostViewMac::ImeCancelComposition() {
   [cocoa_view_ cancelComposition];
 }
 
 void RenderWidgetHostViewMac::ImeCompositionRangeChanged(
     const gfx::Range& range,
     const std::vector<gfx::Rect>& character_bounds) {
@@ skipping 664 matching lines @@
   origin.y = NSHeight([cocoa_view_ bounds]) - origin.y;
   NSPoint originInWindow = [cocoa_view_ convertPoint:origin toView:nil];
   NSPoint originInScreen =
       [[cocoa_view_ window] convertBaseToScreen:originInWindow];
   originInScreen.y = originInScreen.y - size.height;
   return gfx::Point(originInScreen.x, originInScreen.y);
 }
 
 void RenderWidgetHostViewMac::SetTextInputActive(bool active) {
   if (active) {
-    if (text_input_type_ == ui::TEXT_INPUT_TYPE_PASSWORD)
+    if (current_text_input_state()->type == ui::TEXT_INPUT_TYPE_PASSWORD)
       EnablePasswordInput();
     else
       DisablePasswordInput();
   } else {
-    if (text_input_type_ == ui::TEXT_INPUT_TYPE_PASSWORD)
+    if (current_text_input_state()->type == ui::TEXT_INPUT_TYPE_PASSWORD)
       DisablePasswordInput();
   }
 }
 
 void RenderWidgetHostViewMac::OnPluginFocusChanged(bool focused,
                                                    int plugin_id) {
   [cocoa_view_ pluginFocusChanged:(focused ? YES : NO) forPlugin:plugin_id];
 }
 
 void RenderWidgetHostViewMac::OnStartPluginIme() {
@@ skipping 1334 matching lines @@
   return reinterpret_cast<NSInteger>(self);
 }
 
 // Each RenderWidgetHostViewCocoa has its own input context, but we return
 // nil when the caret is in non-editable content or password box to avoid
 // making input methods do their work.
 - (NSTextInputContext *)inputContext {
   if (focusedPluginIdentifier_ != -1)
     return [[ComplexTextInputPanel sharedComplexTextInputPanel] inputContext];
 
-  switch(renderWidgetHostView_->text_input_type_) {
+  switch (renderWidgetHostView_->current_text_input_state()->type) {
     case ui::TEXT_INPUT_TYPE_NONE:
     case ui::TEXT_INPUT_TYPE_PASSWORD:
       return nil;
     default:
       return [super inputContext];
   }
 }
 
 - (BOOL)hasMarkedText {
   // An input method calls this function to figure out whether or not an
@@ skipping 314 matching lines @@
 }
 
 // Overriding a NSResponder method to support application services.
 
 - (id)validRequestorForSendType:(NSString*)sendType
                      returnType:(NSString*)returnType {
   id requestor = nil;
   BOOL sendTypeIsString = [sendType isEqual:NSStringPboardType];
   BOOL returnTypeIsString = [returnType isEqual:NSStringPboardType];
   BOOL hasText = !renderWidgetHostView_->selected_text().empty();
-  BOOL takesText =
-      renderWidgetHostView_->text_input_type_ != ui::TEXT_INPUT_TYPE_NONE;
+  BOOL takesText = renderWidgetHostView_->current_text_input_state()->type !=
+                   ui::TEXT_INPUT_TYPE_NONE;
 
   if (sendTypeIsString && hasText && !returnType) {
     requestor = self;
   } else if (!sendType && returnTypeIsString && takesText) {
     requestor = self;
   } else if (sendTypeIsString && returnTypeIsString && hasText && takesText) {
     requestor = self;
   } else {
     requestor = [super validRequestorForSendType:sendType
                                       returnType:returnType];
@@ skipping 63 matching lines @@
 
 // "-webkit-app-region: drag | no-drag" is implemented on Mac by excluding
 // regions that are not draggable. (See ControlRegionView in
 // native_app_window_cocoa.mm). This requires the render host view to be
 // draggable by default.
 - (BOOL)mouseDownCanMoveWindow {
   return YES;
 }
 
 @end