Moves methods for finding browsers to browser_finder.

chrome/browser/ui/browser_finder.cc

Index: chrome/browser/ui/browser_finder.cc
diff --git a/chrome/browser/ui/browser_finder.cc b/chrome/browser/ui/browser_finder.cc
new file mode 100644
index 0000000000000000000000000000000000000000..16923b35a968790ae7741dc13dcbad0361efb448
--- /dev/null
+++ b/chrome/browser/ui/browser_finder.cc
@@ -0,0 +1,198 @@
+// 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 "chrome/browser/ui/browser_finder.h"
+
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/browser_list.h"
+#include "chrome/browser/ui/browser_window.h"
+#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
+#include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "content/public/browser/navigation_controller.h"
+
+using content::WebContents;
+
+namespace browser {
+
+namespace {
+
+// Type used to indicate to match anything.
+const int kMatchAny                     = 0;
+
+// See BrowserMatches for details.
+const int kMatchOriginalProfile         = 1 << 0;
+const int kMatchCanSupportWindowFeature = 1 << 1;
+const int kMatchTabbed                  = 1 << 2;
+
+// Returns true if the specified |browser| matches the specified arguments.
+// |match_types| is a bitmask dictating what parameters to match:
+// . If it contains kMatchOriginalProfile then the original profile of the
+//   browser must match |profile->GetOriginalProfile()|. This is used to match
+//   incognito windows.
+// . If it contains kMatchCanSupportWindowFeature
+//   |CanSupportWindowFeature(window_feature)| must return true.
+// . If it contains kMatchTabbed, the browser must be a tabbed browser.
+bool BrowserMatches(Browser* browser,
+                    Profile* profile,
+                    Browser::WindowFeature window_feature,
+                    uint32 match_types) {
+  if (match_types & kMatchCanSupportWindowFeature &&
+      !browser->CanSupportWindowFeature(window_feature)) {
+    return false;
+  }
+
+  if (match_types & kMatchOriginalProfile) {
+    if (browser->profile()->GetOriginalProfile() !=
+        profile->GetOriginalProfile())
+      return false;
+  } else if (browser->profile() != profile) {
+    return false;
+  }
+
+  if (match_types & kMatchTabbed)
+    return browser->is_type_tabbed();
+
+  return true;
+}
+
+// Returns the first browser in the specified iterator that returns true from
+// |BrowserMatches|, or null if no browsers match the arguments. See
+// |BrowserMatches| for details on the arguments.
+template <class T>
+Browser* FindBrowserMatching(const T& begin,
+                             const T& end,
+                             Profile* profile,
+                             Browser::WindowFeature window_feature,
+                             uint32 match_types) {
+  for (T i = begin; i != end; ++i) {
+    if (BrowserMatches(*i, profile, window_feature, match_types))
+      return *i;
+  }
+  return NULL;
+}
+
+Browser* FindBrowserWithTabbedOrAnyType(Profile* profile,
+                                        bool match_tabbed,
+                                        bool match_original_profiles) {
+  uint32 match_types = kMatchAny;
+  if (match_tabbed)
+    match_types |= kMatchTabbed;
+  if (match_original_profiles)
+    match_types |= kMatchOriginalProfile;
+  Browser* browser = FindBrowserMatching(
+      BrowserList::begin_last_active(), BrowserList::end_last_active(),
+      profile, Browser::FEATURE_NONE, match_types);
+  // Fall back to a forward scan of all Browsers if no active one was found.
+  return browser ? browser :
+      FindBrowserMatching(BrowserList::begin(), BrowserList::end(), profile,
+                          Browser::FEATURE_NONE, match_types);
+}
+
+size_t GetBrowserCountImpl(Profile* profile, uint32 match_types) {
+  size_t count = 0;
+  for (BrowserList::const_iterator i = BrowserList::begin();
+       i != BrowserList::end(); ++i) {
+    if (BrowserMatches(*i, profile, Browser::FEATURE_NONE, match_types))
+      count++;
+  }
+  return count;
+}
+
+}  // namespace
+
+Browser* FindTabbedBrowser(Profile* profile, bool match_original_profiles) {
+  return FindBrowserWithTabbedOrAnyType(profile,
+                                        true,
+                                        match_original_profiles);
+}
+
+Browser* FindOrCreateTabbedBrowser(Profile* profile) {
+  Browser* browser = FindTabbedBrowser(profile, false);
+  if (!browser)
+    browser = Browser::Create(profile);
+  return browser;
+}
+
+Browser* FindAnyBrowser(Profile* profile, bool match_original_profiles) {
+  return FindBrowserWithTabbedOrAnyType(profile,
+                                        false,
+                                        match_original_profiles);
+}
+
+Browser* FindBrowserWithFeature(Profile* profile,
+                                Browser::WindowFeature feature) {
+  Browser* browser = FindBrowserMatching(
+      BrowserList::begin_last_active(), BrowserList::end_last_active(),
+      profile, feature, kMatchCanSupportWindowFeature);
+  // Fall back to a forward scan of all Browsers if no active one was found.
+  return browser ? browser :
+      FindBrowserMatching(BrowserList::begin(), BrowserList::end(), profile,
+                          feature, kMatchCanSupportWindowFeature);
+}
+
+Browser* FindBrowserWithProfile(Profile* profile) {
+  return FindAnyBrowser(profile, false);
+}
+
+Browser* FindBrowserWithID(SessionID::id_type desired_id) {
+  for (BrowserList::const_iterator i = BrowserList::begin();
+       i != BrowserList::end(); ++i) {
+    if ((*i)->session_id().id() == desired_id)
+      return *i;
+  }
+  return NULL;
+}
+
+Browser* FindBrowserWithWindow(gfx::NativeWindow window) {
+  for (BrowserList::const_iterator it = BrowserList::begin();
+       it != BrowserList::end(); ++it) {
+    Browser* browser = *it;
+    if (browser->window() && browser->window()->GetNativeHandle() == window)
+      return browser;
+  }
+  return NULL;
+}
+
+Browser* FindBrowserWithWebContents(WebContents* web_contents) {
+  DCHECK(web_contents);
+  for (TabContentsIterator it; !it.done(); ++it) {
+    if (it->web_contents() == web_contents)
+      return it.browser();
+  }
+  return NULL;
+}
+
+Browser* FindBrowserForController(
+    const content::NavigationController* controller,
+    int* index_result) {
+  for (BrowserList::const_iterator it = BrowserList::begin();
+       it != BrowserList::end(); ++it) {
+    int index = (*it)->GetIndexOfController(controller);
+    if (index != TabStripModel::kNoTab) {
+      if (index_result)
+        *index_result = index;
+      return *it;
+    }
+  }
+  return NULL;
+}
+
+
+Browser* FindLastActiveWithProfile(Profile* profile) {
+  // We are only interested in last active browsers, so we don't fall back to
+  // all browsers like FindBrowserWith* do.
+  return FindBrowserMatching(
+      BrowserList::begin_last_active(), BrowserList::end_last_active(), profile,
+      Browser::FEATURE_NONE, kMatchAny);
+}
+
+size_t GetBrowserCount(Profile* profile) {
+  return GetBrowserCountImpl(profile, kMatchAny);
+}
+
+size_t GetTabbedBrowserCount(Profile* profile) {
+  return GetBrowserCountImpl(profile, kMatchTabbed);
+}
+
+}  // namespace browser