如何禁用对Plotly-Object的右键单击?

问题描述 投票:0回答:1

我想在Plotly对象之上使用contextmenu(jQuery contextMenu)。问题是,当我使用Box或Lasso-select工具选择多个元素然后右键单击一个条时,它会触发该条上的单击事件,并且之前的选择将丢失。

如何防止在Plotly对象上发生右键单击,因此只需单击左键即可触发单击/选择事件,并且只保留右键单击以打开上下文菜单?

enter image description here

闪亮-应用程序:

library(shiny)
library(ggplot2)
library(plotly)

dfN <- data.frame(
  time_stamp = seq.Date(as.Date("2018-04-01"), as.Date("2018-07-30"), 1),
  val = runif(121, 100,1000),
  col = "green", stringsAsFactors = F
)

jsCode = HTML('
$(document).on("shiny:connected", function() {
    $(function() {
        $.contextMenu({
            selector: "#plot",
            callback: function(key, options) {
              switch(key){
                 case "copy":
                    console.log("Contextmenu: Copy was clicked");
                    break;
                case "paste":
                    console.log("Contextmenu: Paste was clicked");
                    break;
              }
            },
            items: {
              copy: {name: "copy", icon: "copy"},
              "paste": {name: "paste", icon: "paste"}
            }
          });
      });
});')


ui <- fluidPage(
  tags$head(tags$script(src="https://cdnjs.cloudflare.com/ajax/libs/jquery-contextmenu/2.7.1/jquery.contextMenu.min.js")),
  tags$head(tags$script(src="https://cdnjs.cloudflare.com/ajax/libs/jquery-contextmenu/2.7.1/jquery.ui.position.js")),
  tags$head(tags$link(rel="stylesheet", href="https://cdnjs.cloudflare.com/ajax/libs/jquery-contextmenu/2.7.1/jquery.contextMenu.min.css")),
  tags$head(tags$script(jsCode)),
  plotlyOutput("plot")
)

server <- function(input, output, session) {
  output$plot <- renderPlotly({
    key <- highlight_key(dfN)
    p <- ggplot() +
      geom_col(data = key, aes(x = plotly:::to_milliseconds(time_stamp), y = val, fill=I(col)))

    ggplotly(p, source = "Src") %>% 
      layout(xaxis = list(type = "date")) %>% 
      highlight(off = "plotly_doubleclick", on = "plotly_click", color = "blue",
                opacityDim = 0.5, selected = attrs_selected(opacity = 1))
  })
}

shinyApp(ui, server)
javascript r plotly r-plotly jquery-ui-contextmenu
1个回答
0
投票

我找到了一个解决方案,需要更改plotly包的底层plotly.js文件。

普通点击存储为d.event.buttons = 1,显然右击是d.event.buttons = 2

所以在这一节;

graphDiv.on('plotly_click', function(d) {

});

我插入了一个if条件来检查event.buttons是否为1,否则不会发出任何点击。

这适用于当前CRAN版本的情节,dev版本现在有点不同。

  if (d.event.buttons == 1) {
    // Normal Clicks
    Shiny.setInputValue(
      ".clientValue-plotly_click-" + x.source,
      JSON.stringify(eventDataWithKey(d))
    );
    graphDiv._shiny_plotly_click = d;            
  }
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