[WebsiteSettings] API for permissions bubbles.

chrome/browser/ui/website_settings/permission_bubble_manager.cc

+// Copyright (c) 2014 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/ui/website_settings/permission_bubble_manager.h"
+
+#include "chrome/browser/ui/website_settings/permission_bubble_delegate.h"
+
+DEFINE_WEB_CONTENTS_USER_DATA_KEY(PermissionBubbleManager);
+
+void PermissionBubbleManager::AddPermissionBubbleDelegate(
+    PermissionBubbleDelegate* delegate) {
+  // Don't re-add existing delegate.
+  std::vector<PermissionBubbleDelegate*>::iterator di;
+  for (di = delegates_.begin(); di != delegates_.end(); di++) {
+    if (*di == delegate)
+      return;
+  }
+
+  delegates_.push_back(delegate);
+  accept_state_.push_back(false);  // make default state a delegate property?

[markusheintz_, 2014/01/15 23:25:30]

Nit: Is this comment a TODO? If so please mark it as TODO.

I would prefer if the default is deny because a click outside the bubble will
close it and we should not grant any permissions by accident. So I would not
make this a delegate property.

[Greg Billock, 2014/01/16 19:32:50]

The current plan is for these bubbles to be modal-y and require interaction to
close. I'll mark it a TODO -- I don't know if it'll end up a necessary option or
not. Fairly obvious to add, though.

+  if (bubble_showing_ && view_)
+    view_->AddPermissionBubbleDelegate(delegate);
+}
+
+void PermissionBubbleManager::RemovePermissionBubbleDelegate(
+    PermissionBubbleDelegate* delegate) {
+  std::vector<PermissionBubbleDelegate*>::iterator di;
+  std::vector<bool>::iterator ai;
+  for (di = delegates_.begin(), ai = accept_state_.begin();
+       di != delegates_.end(); di++, ai++) {
+    if (*di == delegate) {
+      if (bubble_showing_ && view_)
+        view_->RemovePermissionBubbleDelegate(delegate);
+      delegates_.erase(di);
+      accept_state_.erase(ai);
+      return;
+    }
+  }
+}
+
+void PermissionBubbleManager::SetView(PermissionBubbleView* view) {
+  view_ = view;
+  if (view_ == NULL)
+    return;
+
+  if (bubble_showing_) {
+    view_->Show(delegates_, accept_state_);
+  } else {
+    view_->Hide();
+    return;
+  }
+}
+
+PermissionBubbleManager::PermissionBubbleManager(
+    content::WebContents* web_contents)
+  : content::WebContentsObserver(web_contents),
+    bubble_showing_(false),
+    view_(NULL) {
+}
+
+void PermissionBubbleManager::WebContentsDestroyed(
+    content::WebContents* web_contents) {
+  // Synthetic cancel event if the user closes the WebContents.
+  Closing();
+
+  // The WebContents is going away; be aggressively paranoid and delete
+  // ourselves lest other parts of the system attempt to add permission bubbles
+  // or use us otherwise during the destruction.
+  web_contents->RemoveUserData(UserDataKey());
+  // That was the equivalent of "delete this". This object is now destroyed;
+  // returning from this function is the only safe thing to do.
+}
+
+void PermissionBubbleManager::ToggleAccept(int delegate_index, bool new_value) {
+  DCHECK(delegate_index < static_cast<int>(accept_state_.size()));
+  accept_state_[delegate_index] = new_value;
+}
+
+void PermissionBubbleManager::Accept() {
+  std::vector<PermissionBubbleDelegate*>::iterator di;
+  std::vector<bool>::iterator ai;
+  for (di = delegates_.begin(), ai = accept_state_.begin();
+       di != delegates_.end(); di++, ai++) {
+    if (*ai)
+      (*di)->PermissionGranted();
+    else
+      (*di)->PermissionDenied();
+  }
+  FinalizeBubble();
+}
+
+void PermissionBubbleManager::Deny() {
+  std::vector<PermissionBubbleDelegate*>::iterator di;
+  for (di = delegates_.begin(); di != delegates_.end(); di++)
+    (*di)->PermissionDenied();
+  FinalizeBubble();
+}
+
+void PermissionBubbleManager::Closing() {
+  std::vector<PermissionBubbleDelegate*>::iterator di;
+  for (di = delegates_.begin(); di != delegates_.end(); di++)
+    (*di)->Cancelled();
+  FinalizeBubble();
+}
+
+void PermissionBubbleManager::FinalizeBubble() {
+  std::vector<PermissionBubbleDelegate*>::iterator di;
+  for (di = delegates_.begin(); di != delegates_.end(); di++)
+    (*di)->RequestFinished();
+  delegates_.clear();
+  accept_state_.clear();
+}
+