Intellij IDEA，控制上一页，下一页滚动大小

Question

我对intellij中向上翻页，向下翻页的滚动行为不满意。感觉不对。总是感觉好像我超出了范围。

是否可以调整上一页，下一页的滚动大小？也许到半页或类似的页面。

Answer 1

我已经接受了@yole 的回答并实现了他在一个单独的插件中描述的所有操作：

没有办法通过设置来控制它。您可以做的是编写一个插件，以您喜欢的方式执行滚动。这相当简单：您需要做的就是复制现有的 PageUpAction/PageDownAction 类和它们调用的方法 (EditorActionUtil.moveCaretPageUp/Down) 以根据需要滚动。

这个插件实现了新的动作“Partial Page Up”和“Partial Page Down”，允许滚动一个可在通常的 IDEA 设置对话框中定义的可配置屏幕大小。

官方 JetBrains 存储库中有该插件的可安装版本。

Answer 2

由于许多人都在询问这一点，对于Mac 用户来说，这可以通过使用Karabiner应用程序向上/向下滚动页面并添加以下复杂规则来全局控制：

{
    "description": "mmm.karabiner.page.up.down.to.scroll",
    "manipulators": [
        {
            "conditions": [
                {
                    "bundle_identifiers": [
                        "^net.java.openjdk.cmd",
                        "^com.jetbrains.intellij"
                    ],
                    "type": "frontmost_application_if"
                }
            ],
            "from": {
                "key_code": "page_up"
            },
            "to": [
                {
                    "mouse_key": {
                        "vertical_wheel": -51
                    }
                }
            ],
            "to_delayed_action": {
                "to_if_invoked": [
                    {
                        "pointing_button": "button1"
                    }
                ]
            },
            "type": "basic"
        },
        {
            "conditions": [
                {
                    "bundle_identifiers": [
                        "^net.java.openjdk.cmd",
                        "^com.jetbrains.intellij"
                    ],
                    "type": "frontmost_application_unless"
                }
            ],
            "from": {
                "key_code": "page_up"
            },
            "to": [
                {
                    "mouse_key": {
                        "vertical_wheel": -51
                    }
                }
            ],
            "type": "basic"
        },
        {
            "conditions": [
                {
                    "bundle_identifiers": [
                        "^net.java.openjdk.cmd",
                        "^com.jetbrains.intellij"
                    ],
                    "type": "frontmost_application_if"
                }
            ],
            "from": {
                "key_code": "up_arrow",
                "modifiers": {
                    "mandatory": [
                        "fn"
                    ]
                }
            },
            "to": [
                {
                    "mouse_key": {
                        "vertical_wheel": -51
                    }
                }
            ],
            "to_delayed_action": {
                "to_if_invoked": [
                    {
                        "pointing_button": "button1"
                    }
                ]
            },
            "type": "basic"
        },
        {
            "conditions": [
                {
                    "bundle_identifiers": [
                        "^net.java.openjdk.cmd",
                        "^com.jetbrains.intellij"
                    ],
                    "type": "frontmost_application_unless"
                }
            ],
            "from": {
                "key_code": "up_arrow",
                "modifiers": {
                    "mandatory": [
                        "fn"
                    ]
                }
            },
            "to": [
                {
                    "mouse_key": {
                        "vertical_wheel": -51
                    }
                }
            ],
            "type": "basic"
        },
        {
            "conditions": [
                {
                    "bundle_identifiers": [
                        "^net.java.openjdk.cmd",
                        "^com.jetbrains.intellij"
                    ],
                    "type": "frontmost_application_if"
                }
            ],
            "from": {
                "key_code": "page_down"
            },
            "to": [
                {
                    "mouse_key": {
                        "vertical_wheel": 51
                    }
                }
            ],
            "to_delayed_action": {
                "to_if_invoked": [
                    {
                        "pointing_button": "button1"
                    }
                ]
            },
            "type": "basic"
        },
        {
            "conditions": [
                {
                    "bundle_identifiers": [
                        "^net.java.openjdk.cmd",
                        "^com.jetbrains.intellij"
                    ],
                    "type": "frontmost_application_unless"
                }
            ],
            "from": {
                "key_code": "page_down"
            },
            "to": [
                {
                    "mouse_key": {
                        "vertical_wheel": 51
                    }
                }
            ],
            "type": "basic"
        },
        {
            "conditions": [
                {
                    "bundle_identifiers": [
                        "^net.java.openjdk.cmd",
                        "^com.jetbrains.intellij"
                    ],
                    "type": "frontmost_application_if"
                }
            ],
            "from": {
                "key_code": "down_arrow",
                "modifiers": {
                    "mandatory": [
                        "fn"
                    ]
                }
            },
            "to": [
                {
                    "mouse_key": {
                        "vertical_wheel": 51
                    }
                }
            ],
            "to_delayed_action": {
                "to_if_invoked": [
                    {
                        "pointing_button": "button1"
                    }
                ]
            },
            "type": "basic"
        },
        {
            "conditions": [
                {
                    "bundle_identifiers": [
                        "^net.java.openjdk.cmd",
                        "^com.jetbrains.intellij"
                    ],
                    "type": "frontmost_application_unless"
                }
            ],
            "from": {
                "key_code": "down_arrow",
                "modifiers": {
                    "mandatory": [
                        "fn"
                    ]
                }
            },
            "to": [
                {
                    "mouse_key": {
                        "vertical_wheel": 51
                    }
                }
            ],
            "type": "basic"
        }
    ]
},

另请注意，为了实现平滑滚动，请考虑下载Mos 应用程序并根据需要调整首选项。

https://mos.caldis.me/

这可能会对您的 Mac 产生其他后果，因此您可能需要调整其他内容，因为您的 page_up/down 不再是 page_up/down而是鼠标滚动。