Updating Blink-side WebGamepad interface

Source/modules/gamepad/Gamepad.cpp

Index: Source/modules/gamepad/Gamepad.cpp
diff --git a/Source/modules/gamepad/Gamepad.cpp b/Source/modules/gamepad/Gamepad.cpp
index c83ccaf90a457ce81bcf3bc81f7680410dfefc00..0c82a833a4f7e75b92c8eec369b9a85acc29c43c 100644
--- a/Source/modules/gamepad/Gamepad.cpp
+++ b/Source/modules/gamepad/Gamepad.cpp
@@ -28,6 +28,8 @@
 
 namespace WebCore {
 
+const float ButtonPressedThreshold = 0.1f;

[scottmg, 2014/02/18 23:46:31]

As noted in the chromium-side review, I think this should happen in the data
fetcher, not at this level.

+
 DEFINE_GC_INFO(Gamepad);
 
 Gamepad::Gamepad()
@@ -46,9 +48,16 @@ void Gamepad::axes(unsigned count, float* data)
 
 void Gamepad::buttons(unsigned count, float* data)
 {
-    m_buttons.resize(count);
-    if (count)
-        std::copy(data, data + count, m_buttons.begin());
+    if (m_buttons.size() != count) {
+        m_buttons.resize(count);
+        for (unsigned i = 0; i < count; ++i)
+            m_buttons[i] = GamepadButton::create();
+    }
+
+    for (unsigned i = 0; i < count; ++i) {
+        m_buttons[i]->value(data[i]);
+        m_buttons[i]->pressed(data[i] >= ButtonPressedThreshold);
+    }
 }
 
 Gamepad::~Gamepad()