1 files changed, 146 insertions, 0 deletions
diff --git a/chrome/views/radio_button.cc b/chrome/views/radio_button.cc
new file mode 100644
index 0000000..4f7c931
--- /dev/null
+++ b/chrome/views/radio_button.cc
@@ -0,0 +1,146 @@
+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "chrome/views/radio_button.h"
+
+#include "chrome/views/label.h"
+#include "chrome/views/hwnd_view.h"
+#include "chrome/views/root_view.h"
+
+namespace ChromeViews {
+
+// FIXME(ACW) there got be a better way to find out the check box sizes
+static int kRadioWidth = 13;
+static int kRadioHeight = 13;
+static int kRadioToLabel = 4;
+
+const char RadioButton::kViewClassName[] = "chrome/views/RadioButton";
+
+RadioButton::RadioButton(const std::wstring& label, int group_id)
+    : CheckBox(label) {
+  SetGroup(group_id);
+}
+
+RadioButton::~RadioButton() {
+}
+
+HWND RadioButton::CreateNativeControl(HWND parent_container) {
+  HWND r = ::CreateWindowEx(GetAdditionalExStyle(),
+                            L"BUTTON",
+                            L"",
+                            WS_CHILD | BS_RADIOBUTTON ,
+                            0, 0, GetWidth(), GetHeight(),
+                            parent_container, NULL, NULL, NULL);
+  ConfigureNativeButton(r);
+  return r;
+}
+
+LRESULT RadioButton::OnCommand(UINT code, int id, HWND source) {
+  // Radio buttons can't be toggled off once selected except by clicking on
+  // another radio button within the same group, so we override this from
+  // CheckBox to prevent this from happening.
+  if (code == BN_CLICKED) {
+    RequestFocus();
+    if (!IsSelected()) {
+      SetIsSelected(true);
+      return NativeButton::OnCommand(code, id, source);
+    }
+  }
+  return 0;
+}
+
+// static
+int RadioButton::GetTextIndent() {
+  return kRadioWidth + kRadioToLabel + kFocusPaddingHorizontal;
+}
+
+
+std::string RadioButton::GetClassName() const {
+  return kViewClassName;
+}
+
+void RadioButton::GetPreferredSize(CSize *out) {
+  label_->GetPreferredSize(out);
+  out->cy = std::max(static_cast<int>(out->cy + kFocusPaddingVertical * 2),
+                     kRadioHeight) ;
+  out->cx += kRadioToLabel + kRadioWidth + kFocusPaddingHorizontal * 2;
+}
+
+void RadioButton::Layout() {
+  int label_x = GetTextIndent();
+  label_->SetBounds(label_x, 0, GetWidth() - label_x, GetHeight());
+  if (hwnd_view_) {
+    int first_line_height = label_->GetFont().height();
+    hwnd_view_->SetBounds(0, ((first_line_height - kRadioHeight) / 2) + 1,
+                          kRadioWidth, kRadioHeight);
+    hwnd_view_->UpdateHWNDBounds();
+  }
+}
+
+void RadioButton::SetIsSelected(bool f) {
+  if (f != IsSelected()) {
+    if (f) {
+      // We can't just get the root view here because sometimes the radio
+      // button isn't attached to a root view (e.g., if it's part of a tab page
+      // that is currently not active).
+      View* container = GetParent();
+      while (container && container->GetParent())
+        container = container->GetParent();
+      if (container) {
+        std::vector<View*> other;
+        container->GetViewsWithGroup(GetGroup(), &other);
+        std::vector<View*>::iterator i;
+        for (i = other.begin(); i != other.end(); ++i) {
+          if (*i != this) {
+            RadioButton* peer = static_cast<RadioButton*>(*i);
+            peer->SetIsSelected(false);
+          }
+        }
+      }
+    }
+    CheckBox::SetIsSelected(f);
+  }
+}
+
+View* RadioButton::GetSelectedViewForGroup(int group_id) {
+  std::vector<View*> views;
+  GetRootView()->GetViewsWithGroup(group_id, &views);
+  if (views.empty())
+    return NULL;
+
+  for (std::vector<View*>::const_iterator iter = views.begin();
+       iter != views.end(); ++iter) {
+    RadioButton* radio_button = static_cast<RadioButton*>(*iter);
+    if (radio_button->IsSelected())
+      return radio_button;
+  }
+  return NULL;
+}
+
+}