webview: client: Add support for SetInsets command

Bug: None
Test: Compiled & ran wayland_webview_client
Change-Id: I928ec220a0406dcb13466c00a4c8072d9f7ee326
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2616832Reviewed-by: Shawn Gallea <sagallea@google.com>
Reviewed-by: Ryan Daum <rdaum@chromium.org>
Commit-Queue: Daniel Nicoara <dnicoara@chromium.org>
Cr-Commit-Position: refs/heads/master@{#842176}

chromecast/browser/webview/client/webview.cc

@@ -39,6 +39,7 @@ constexpr char kResizeCommand[] = "resize";
 constexpr char kPositionCommand[] = "position";
 constexpr char kKeyCommand[] = "key";
 constexpr char kFillCommand[] = "fill";
+constexpr char kSetInsetsCommand[] = "set_insets";
 
 void FrameCallback(void* data, wl_callback* callback, uint32_t time) {
   WebviewClient* webview_client = static_cast<WebviewClient*>(data);
@@ -356,6 +357,8 @@ void WebviewClient::InputCallback() {
     SendKeyRequest(tokens);
   else if (tokens[1] == kFillCommand)
     HandleFillSurfaceColor(tokens);
+  else if (tokens[1] == kSetInsetsCommand)
+    HandleSetInsets(tokens);
 
   std::cout << "Enter command: ";
   std::cout.flush();
@@ -499,6 +502,40 @@ void WebviewClient::HandleFillSurfaceColor(
   surfaces_[id]->buffer->sk_surface->getCanvas()->clear(color);
 }
 
+void WebviewClient::HandleSetInsets(const std::vector<std::string>& tokens) {
+  int id, top, left, bottom, right;
+  if (tokens.size() != 6 || !base::StringToInt(tokens[0], &id) ||
+      !base::StringToInt(tokens[2], &top) ||
+      !base::StringToInt(tokens[3], &left) ||
+      !base::StringToInt(tokens[4], &bottom) ||
+      !base::StringToInt(tokens[5], &right)) {
+    LOG(ERROR) << "Usage: [ID] " << kSetInsetsCommand
+               << " [top] [left] [bottom] [right]";
+    return;
+  }
+
+  if (surfaces_.find(id) == surfaces_.end()) {
+    LOG(ERROR) << "Failed to find surface " << id;
+    return;
+  }
+
+  Webview* webview = Webview::FromSurface(surfaces_[id].get());
+  if (!webview) {
+    LOG(ERROR) << "Failed to find webview " << id;
+    return;
+  }
+
+  WebviewRequest request;
+  request.mutable_set_insets()->set_top(top);
+  request.mutable_set_insets()->set_left(left);
+  request.mutable_set_insets()->set_bottom(bottom);
+  request.mutable_set_insets()->set_right(right);
+  if (!webview->client->Write(request)) {
+    LOG(ERROR) << "SetInsets failed";
+    return;
+  }
+}
+
 void WebviewClient::SendResizeRequest(Webview* webview, int width, int height) {
   WebviewRequest resize_request;
   resize_request.mutable_resize()->set_width(width);

chromecast/browser/webview/client/webview.h

@@ -99,6 +99,7 @@ class WebviewClient : public exo::wayland::clients::ClientBase {
   void HandleResizeRequest(const std::vector<std::string>& tokens);
   void HandleFillSurfaceColor(const std::vector<std::string>& tokens);
   void SendKeyRequest(const std::vector<std::string>& tokens);
+  void HandleSetInsets(const std::vector<std::string>& tokens);
 
   void SendTouchInput(const Webview* webview,
                       int x,