Test synthetic pointer action on pointer event tests

content/renderer/gpu/actions_runner.cc

+// Copyright (c) 2016 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 "content/renderer/gpu/actions_runner.h"
+
+#include "base/format_macros.h"
+#include "base/memory/ptr_util.h"
+#include "base/strings/stringprintf.h"
+#include "base/values.h"
+
+namespace content {
+
+namespace {
+
+SyntheticPointerActionParams::PointerActionType ToSyntheticPointerActionType(
+    std::string action_type) {
+  if (action_type == "pointerDown")
+    return SyntheticPointerActionParams::PointerActionType::PRESS;
+  if (action_type == "pointerMove")
+    return SyntheticPointerActionParams::PointerActionType::MOVE;
+  if (action_type == "pointerUp")
+    return SyntheticPointerActionParams::PointerActionType::RELEASE;
+  if (action_type == "pause")
+    return SyntheticPointerActionParams::PointerActionType::IDLE;
+  NOTREACHED() << "Invalid SyntheticPointerActionParams::PointerActionType.";
+  return SyntheticPointerActionParams::PointerActionType::NOT_INITIALIZED;
+}
+
+SyntheticGestureParams::GestureSourceType ToSyntheticGestureSourceType(
+    std::string source_type) {
+  if (source_type == "touch")
+    return SyntheticGestureParams::TOUCH_INPUT;
+  else if (source_type == "mouse")
+    return SyntheticGestureParams::MOUSE_INPUT;
+  else
+    return SyntheticGestureParams::DEFAULT_INPUT;
+}
+
+}  // namespace
+
+ActionsRunner::ActionsRunner(base::Value* value)
+    : longest_action_sequence_(0), value_(value), index_(0) {}
+
+ActionsRunner::~ActionsRunner() {}
+
+bool ActionsRunner::ParseSources() {
+  const base::DictionaryValue* actions;
+  if (!value_->GetAsDictionary(&actions)) {
+    error_message_ =
+        base::StringPrintf("actions is missing or not a dictionary");
+    return false;
+  }
+
+  std::string source_type;
+  if (!actions->GetString("source", &source_type)) {
+    error_message_ =
+        base::StringPrintf("source type is missing or not a string");
+    return false;
+  } else if (source_type != "touch" && source_type != "mouse" &&
+             source_type != "pointer") {
+    error_message_ =
+        base::StringPrintf("source type is an unsupported input source");
+    return false;
+  }
+
+#if defined(OS_MACOSX)
+  if (source_type == "touch") {
+    error_message_ =
+        base::StringPrintf("Mac OS does not support touch events");
+    return false;
+  }
+#endif  // defined(OS_MACOSX)
+
+  const base::ListValue* pointer_list;
+  if (!actions->GetList("pointer", &pointer_list)) {
+    error_message_ =
+        base::StringPrintf("pointer_list is missing or not a list");
+    return false;
+  }
+
+  for (i = 0; i < pointer_list->GetSize(); i++) {
+    const base::DictionaryValue* pointer_actions;
+    if (!pointer_list->GetDictionary(i, &pointer_actions)) {
+      error_message_ =
+          base::StringPrintf("pointer actions is missing or not a dictionary");
+      return false;
+    } else if (!ParsePointerActions(*pointer_actions)) {
+      return false;
+    }
+  }
+
+  if (!gesture_params_)
+    gesture_params_ = base::MakeUnique<SyntheticPointerActionListParams>();
+
+  gesture_params_->gesture_source_type =
+      ToSyntheticGestureSourceType(source_type);
+  // Group a list of actions from all pointers into a
+  // SyntheticPointerActionListParams object, which is a list of actions, which
+  // will be dispatched together.
+  for (size_t action_index = 0; action_index < longest_action_sequence_;
+       ++action_index) {
+    SyntheticPointerActionListParams::ParamList param_list;
+    for (size_t pointer_index = 0; pointer_index < ids_.size();
+         ++pointer_index) {
+      if (pointer_actions_list_[pointer_index].size() > action_index)
+        param_list.push_back(
+            pointer_actions_list_[pointer_index][action_index]);
+    }
+    gesture_params_->PushPointerActionParamsList(param_list);
+  }
+
+  return true;
+}
+
+bool ActionsRunner::ParsePointerActions(
+    const base::DictionaryValue& pointer_actions) {
+  if (!pointer_actions.GetInteger("id", &index_)) {
+    error_message_ =
+        base::StringPrintf("actions[%" PRIuS "].id is missing or not a int", i);
+    return false;
+  } else if (ids_.find(index_) != ids_.end()) {
+    error_message_ =
+        base::StringPrintf("actions[%" PRIuS "].id is not unique", i);
+    return false;
+  }
+  ids_.insert(index_);
+
+  const base::ListValue* actions;
+  if (!pointer_actions.GetList("actions", &actions)) {
+    error_message_ = base::StringPrintf(
+        "actions[%" PRIuS "].actions is missing or not a list", i);
+    return false;
+  }
+
+  if (actions->GetSize() > longest_action_sequence_)
+    longest_action_sequence_ = actions->GetSize();
+  if (!ParseActions(*actions))
+    return false;
+
+  return true;
+}
+
+bool ActionsRunner::ParseActions(const base::ListValue& actions) {
+  SyntheticPointerActionListParams::ParamList param_list;
+  for (j = 0; j < actions.GetSize(); j++) {
+    const base::DictionaryValue* action;
+    if (!actions.GetDictionary(j, &action)) {
+      error_message_ = base::StringPrintf("actions[%" PRIuS "].actions[%" PRIuS
+                                          "] is missing or not a dictionary",
+                                          i, j);
+      return false;
+    } else if (!ParseAction(*action, param_list)) {
+      return false;
+    }
+  }
+  pointer_actions_list_.push_back(param_list);
+  return true;
+}
+
+bool ActionsRunner::ParseAction(
+    const base::DictionaryValue& action,
+    SyntheticPointerActionListParams::ParamList& param_list) {
+  SyntheticPointerActionParams::PointerActionType pointer_action_type =
+      SyntheticPointerActionParams::PointerActionType::NOT_INITIALIZED;
+  std::string name;
+  if (!action.GetString("name", &name)) {
+    error_message_ = base::StringPrintf("actions[%" PRIuS "].actions[%" PRIuS
+                                        "].name is missing or not a string",
+                                        i, j);
+    return false;
+  }
+  if (name != "pointerDown" && name != "pointerUp" && name != "pointerMove" &&
+      name != "pause") {
+    error_message_ = base::StringPrintf("actions[%" PRIuS "].actions[%" PRIuS
+                                        "].name is an unsupported action name",
+                                        i, j);
+    return false;
+  }
+  pointer_action_type = ToSyntheticPointerActionType(name);
+
+  double position_x = 0;
+  double position_y = 0;
+  if (action.HasKey("x") && !action.GetDouble("x", &position_x)) {
+    error_message_ = base::StringPrintf(
+        "actions[%" PRIuS "].actions[%" PRIuS "].x is not a number", i, j);
+    return false;
+  }
+
+  if (action.HasKey("y") && !action.GetDouble("y", &position_y)) {
+    error_message_ = base::StringPrintf(
+        "actions[%" PRIuS "].actions[%" PRIuS "].y is not a number", i, j);
+    return false;
+  }
+
+  SyntheticPointerActionParams action_param(pointer_action_type);
+  action_param.set_index(index_);
+  if (pointer_action_type ==
+          SyntheticPointerActionParams::PointerActionType::PRESS ||
+      pointer_action_type ==
+          SyntheticPointerActionParams::PointerActionType::MOVE) {
+    action_param.set_position(gfx::PointF(position_x, position_y));
+  }
+  param_list.push_back(action_param);
+  return true;
+}
+
+}  // namespace content